HURDCO International School

Middle School (Grade: IV) 2019-2020

4th Quarter Worksheets & Study Materials

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Subject: English Language Topic: Comprehension

Desert Cottontails

The desert cottontail is a type of rabbit that lives in the dry, dusty areas of New Mexico, Arizona, and

Western Texas. They can also live as far north as Montana and as far west as California. This type of

cottontail is similar to other rabbit species because it has an easily-noticed white fluffy tail, but it has

larger ears that usually stand straight up. They have the potential to weigh up to 3.3 pounds (1.5 kg) and

grow to 20 inches (51 cm) in length. Desert cottontails tend to be most active during the morning and

late afternoon hours. During the day they avoid the hot desert sun, and seek shelter to keep themselves

cool. Desert cottontails will eat almost any type of plant, and sometimes they'll munch on small bugs as

well. Desert cottontails rarely need to drink water because the desert plants they eat usually contain

moisture. The cottontail has many predators, including bobcats, mountain lions, owls, eagles,

rattlesnakes, and coyotes. Sometimes they are able to outsmart the large predators by running very fast

and diving into small holes where bigger animals cannot go. They usually run in a zigzag pattern so

they're harder to catch. Cottontails are one of the few species of rabbits that are also able to climb trees

when they're trying to escape a predator. When she is ready to have babies, a female cottontail will make

a nest of grass and fur. They can have as many as ten baby cottontails at one time! And sometimes they

can have four litters in a single year. Baby desert cottontails stay with their mother for three weeks

before they go out on their own.

1. Tick the suitable word for the given meaning according to the context.

a) an animal that lives by killing and eating other animals-

i. predators ii. pattern

b) capable of development into actuality-

i. potential ii. species

2. Write the comparative and superlative degrees of the following adjectives.

a) large: ………………………….. …………………………………

b) small: ………………………….. ………………………………….

c) far: ………………………….. ………………………………….

3. Write the past and past participle form of the following verbs.

a) go: ………………………… …………………………………

b) eat: ………………………… …………………………………

c) run: ………………………… …………………………………

d) catch: ………………………… …………………………………

e) drink: ………………………… …………………………………

4. Underline one possessive adjective in the passage.

5. Answer the following questions.

a) Where do desert cottontails live?

……………………………………………………………………………………………………

……………………………………………………………………………………………………

……………………………………………………………………………………………………

………………

b) Why don't desert cottontails need to drink a lot of water?

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………

c) According to the information in passage, how many babies can a female cottontail have in

one year?

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………………………………………………………………………

………………………………

d) Would you be most likely to see a desert cottontail at 7am, noon, 2pm, or midnight? Why?

(discussion)

e) List three ways a desert cottontail escapes predators. (discussion)

ANSWERS:

1. a) i b) i

2.

a) large: larger- the largest

b) small: smaller- the smallest

c) far: far- the farthest

3.

a) go: went-gone

b) eat: ate-eaten

c) run: ran-run

d) catch: caught-caught

e) drink: drank-drunk

4. underlined in the passage.

5. Answers:

a) The desert cottontail lives in the dry, dusty areas of New Mexico, Arizona, and Western Texas.

They can also live as far north as Montana and as far west as California

b) Desert cottontails rarely need to drink water because the desert plants they eat usually contain

moisture in it.

c) According to the passage, a female cottontail can have as many as ten baby cottontails at one time

and sometimes they can have four litters in a single year.

Topic: Interrogative of Verbs

Interrogative sentences are formed by inversion. Verb comes before the subject and question mark is

given at the end of the sentence. It is a questioning sentence which starts with either wh question or

auxiliary verb.it asks question and at the end of the sentence a question mark is used as punctuation.

❖ Structure: verb+sub+object

❖ Example:

Statement: They(sub)+ are (verb)+ good students(obj)

Question: Are(verb)+ they(sub)+ good students(obj)?

➢ Example:

➢ Question: What is your aim? (wh question)

➢ Question: How did you go there? (wh question)

❖ When there is no auxiliary verb ‘do’, ‘does’, ‘did’ are used as auxiliary verb.

❖ Example:

❖ Statement: You agree with me.

❖ Question: Do you agree with me?

1. Make the following sentences interrogative.

a) The farmer is planting rice.

b) You can see them through the window.

c) They are good students.

d) You will come to visit me.

BG; pg: 69-70(ex) is included here.

Answers:

a) Is the farmer planting rice?

b) Can you see them through the window?

c) Are they good students?

d) Will you come to visit me?

Topic: Negative of Verbs

Contracted/Short forms of negatives:

Negative Contracted form

is not isn’t

are not aren’t

have not haven’t

has not hasn’t

cannot can’t

will not won’t

must not mustn’t

ought not oughtn’t

was not wasn’t

Negative Contracted form

could not couldn’t

were not weren’t

should not shouldn’t

would not wouldn’t

might not mightn’t

do not don’t

did not didn’t

does not doesn’t

had not hadn’t

Ex. Make the following sentences negative (use contracted form).

a. I am Greek.

I amn’t Greek.

b. I will do what you ask me.

I won’t do what you ask me.

c. Richard can swim very well.

Richard can’t swim very well.

d. You must go now.

You mustn’t go now.

BG:pg 61(ex:A,B),pg:63:((ex:A),pg:85: (ex:A) are included here.

In simple present tense:

• don’t is used after I,you,we,they.

Ex:I know the answer.

Neg:I don’t know the answer.

• doesn’t is used after he/she/it/any name

etc (3rd person singular.)

Ex: Carl bakes a cake

Negative: Carl doesn’t bake a cake.

In simple past tense:

• the main verb is present and we use

didn’t.

• ex:I knew Harry.

Negative: I didn’t know Harry.

Examples:

Q. The cat sits on the wall. Ans:The cat doesn’t sit on the wall.

Q. The cats sit on the wall. Ans: The cats don’t sit on the wall.

1. Supply don’t/doesn’t in the following sentences. Answers: don’t, don’t, don’t,

doesn’t

(a) Dogs ...................................like cats.

(b) I ……………………..like this picture.

(c) You …………………..know the answer.

(d) Tom …………………………know Jerry.

Topic: Simple past and Past Continuous Tense

Simple Past tense:

✓ The simple past tense is used to describe a completed activity that happened in the past. In

other words, it started in the past and ended in the past.

✓ For regular verbs:ed,d or t is added with the verb:burn-burnt,want-wanted,dance-

danced,sometimes last letter is doubled: stop-stopped

✓ For irregular verbs: sometimes vowel is changed(fly-flew),sometimes the verb is changed(go-

went)

✓ Structure: Sub+past form of verb+ obj

Example: I went to school yesterday.

Present Past

may might

can could

will would

shall should

now then

today yesterday

Past continuous Tense:

✓ The action which was going on or continuing in the past time.

✓ ing-form of verb. Example: I was playing in the field.

✓ helping verbs:was/were

✓ If the subject is singular, the helping verb will be singular.(I was/He was)

✓ If the subject is plural, the helping verb will be plural.(We were/they were)

✓ Sub+ helping verb(was/were)+ing form of verb+ obj

Topic: Simple past and Past Continuous Tense

Q1. Circle the correct answer:

a) John (forgot/was forgetting) to lock the car.

b) She (was looking/looked) nervous when a stranger approached her.

c) I (was walking/walk) on the bridge when I dropped my pen into the river accidently.

d) She (was driving/drove) very fast when the police caught her.

e) While I (got/was getting) ready to go, the doorbell (rang/was ringing).

Q2. Put the verb in brackets into the past continuous tense. (BG: pg: 52 ex:B is included here)

a) It (rain) when we went out. …………………………………

b) I (play) the piano when he came into the room. ……………………………

c) The baby (eat) its dinner when I came home. ………………………………..

d) We (sing) a song when Peter came into the room. ………………………………..

e) When the phone rang, I (work) in the garden .…………………………….

f) She (live) in England when the war began. …………………………………

Q3. Change the sentences to past tense. (GFWG: pg: 104: ex: 4 is included here)

a) It is very cold today.

………………………………………………………………………………

b) The students are disturbing in the class.

…………………………………………………………….

c) Mrs Gupta goes for yoga classes everyday.

………………………………………………………………………………………………

d) Tim likes to eat chocolates.

…………………………………………………………………..

Answers:

1. (a) forgot (b) was looking (c) was walking (d) was driving (e) was getting, rang

2. (a) was raining, (b)was playing, (c) was eating, (d) were singing, (e) was working, (f) was living

3. a) It was very cold yesterday.

b) The students were disturbing in the class.

c) Mrs Gupta went for yoga classes yesterday.

d) Tim liked to eat chocolates.

Topic: All Topics

1. Fill in the blanks:

a) Possessive adjectives refer to words which modify a noun by showing a form of

……………………………. or a sense of belonging to a particular person or thing.

b) Possessive adjectives show ………………………………

c) Words that describe nouns are called ……………………………

d) Adjectives can be used to compare ……………………….. or ………………………….

e) Adjectives have ……………………degrees of comparison.

f) Short adjectives form their comparative degree by adding ……..and their superlative by

adding ………to the positive.

g) The preposition is always followed by a ………………. or pronoun.

h) Words that show relationship between a noun or pronoun and other words in a sentence are

called ……………………………………

i) Regular verbs form their simple past and past participle by adding …………………...to the

base.

j) Some verbs change their ………………………. sound in irregular verbs.

k) The tense of a verb shows the ……………of an action.

l) Simple ………………………………………tense is used for repeated or habitual action.

m) The present ………………………….. tense expresses an action that is still going on now.

n) The simple past tense is used to ……………………….. a completed activity that happened

in the past.

Answers:

a) possession

b) ownership

c) adjectives

d) persons, things

e) three

f) –er, -est

g) noun

h) prepositions

i) ed, d, t

j) vowel

k) time

l) present

m) continuous

n) describe

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welq: evsjv e¨vKiY

Z_¨: m‡gv”PvwiZ wfbœv_©K kã

1| mg A_© mgvb, D”PvwiZ A_© †Kvb wKQz D”PviY Kiv

2| †hme k‡ãi D”PviY GKB wKš‘ A_© wfbœ †mme kã‡K m‡gv”PvwiZ wfbœv_©K kã e‡j|

3| m‡gv”PvwiZ kã = Homophones

cÖkœ: wb‡Pi m‡gv”PvwiZ kã¸wji A_© †jL:

1| Avw` = g~j 4| el©v = FZzi bvg

Avwa = g‡bi Kó ek©v = A¯¿ we‡kl

2| Kzj = esk 5| R¡i= †ivM

K~j = b`xi wKbviv Ro = A‡PZb

3| KzRb = Lvivc †jvK 6| nvd = A‡a©K

K~Rb = cvwLi WvK nuvd = `g

Z_¨: wµqvi Kvj ( Tense )

1| wµqv msNwUZ ev m¤úbœ nIqvi mgq‡K wµqvi Kvj e‡j | wµqv k‡ãi A_© KvR Ges Kvj A_© mgq|

2| evsjv fvlvq wµqvi Kvj cÖavbZ 3 cÖKvi| h_v:

K) eZ©gvb Kvj( Present Tense )

L) AZxZ Kvj (Past tense)

M) fwel¨r Kvj (Future tense )

3| D`vniY: K) Avwg Lvw”Q| (eZ©gvb Kvj)

L) Avwg †L‡qwQjvg| (AZxZ Kvj)

M) Avwg Lve| (fwel¨r Kvj)

cÖkœ: wb‡Pi †KvbwU †Kvb wµqvi Kvj Zv wbY©q K‡i †jL:

K) ev`j Mvwo Pvjv‡e| ----------------------------------- P) Zviv eB †gjvq hv‡”Q| -------------------

-----------

L) mweZv wPwV wjL‡Q| ------------------------------------ Q) evev Awd‡m hv‡e| -----------------------

------

M) ivRy bZzb K¬v‡m DV‡e| --------------------------------- R) gv cv‡qm ivbœv K‡iwQj| -----------------

------

N) ‡m AvgwU †L‡qwQj|--------------------------------- S) †Q‡jwU GKwU ej wKb‡Q| ----------------

-----

O) Avwg I wgZv Mvb MvBe| ---------------------------- T) weovjwU gvQ †L‡qwQj| ------------------

----------

DËi: K) fwel¨r Kvj L) eZ©gvb Kvj M) fwel¨r Kvj N) AZxZ Kvj O) fwel¨r Kvj P)

eZ©gvb Kvj

Q) fwel¨r Kvj R) AZxZ Kvj S) eZ©gvb Kvj T) AZxZ Kvj

`iLv¯Í:

cÖkœ: ‡`wi‡Z †eZb †`qvq †h Rwigvbv n‡q‡Q Zv gIKz‡di Rb¨ ¯‹z‡ji Aa¨‡ÿi wbKU GKwU `iLv Í †jL|

DËi: cvV¨eB c„ôv: 183 (2 bs)

iPbv: Avgv‡`i gvZ…f~wg (120 k‡ã wjL‡Z n‡e)

iPbv ms‡KZ: K) gvZ…f~wg ej‡Z Kx eyS? ( Rb¥f~wg ev ¯^‡`k,wb‡Ri †`k, gv‡qi ‡`k)

L) †Kvb gnv‡`‡k Aew¯’Z? AvqZb KZ? mxgvbv ( Gwkqv gnv‡`k, 1,47,570 eM ©wK‡jvwgUvi, Pviw`‡K fviZ Avi

wgqvbgvi)

M) RbmsL¨v, gvZ…fvlv (16 †KvwU, gvZ„fvlv evsjv)

N) ¯vaxbZv jvf (9 gvm hy‡×i ci GB †`k ¯^vaxb nq, 16 wW‡m¤^i weRq w`em ,cvwK Ív‡bi weiæ‡× hy× K‡iwQj)

O) G‡`‡ki K‡qKwU `k ©bxq ¯’v‡bi bvg ( K·evRvi, my›`ieb, ivOvgvwU, Rvdjs, jvjev‡Mi †Kjøv, †mvbviMuvI, RvZxq

¯§„„wZ‡mŠa BZ¨vw`)

P) RvZxq dyj, dj, cvwL, cï, Kwe, MvQ, cÖf…wZi bvg

S) Dcmsnvi (†`k‡K Zzwg †Kgb fv‡jvevm, †`‡ki cÖwZ †Zvgvi `vwqZ¡ Kx)

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welq:evsjv mvwnZ¨ cvV: Ny‡i Avwm †mvbviMvuI

1| mwVK Dˇi wUK () wPý `vI:

K) XvKv †_‡K †mvbviMvuI‡qi ~iZ¡ KZ wK‡jvwgUvi?

i) 29 wK‡jvwgUvi ii) 27 wK‡jvwgUvi iii) 23 wK‡jvwgUvi

L) ‡mvbviMvuI‡qi kvmbKZ©v †K wQ‡jb?

i) Bkv Bmjvg ii) Ckv Luv iii) Ckv Avn‡g`

M) †Mvqvjw` gmwR` Kq M¤^ yRwewkó gmwR`?

i) 3 M¤^yR ii) 2 M¤^yR iii) 1 M¤^yR

N) †mvbviMvuI †Kvb Kvc‡oi Rb¨ weL¨vZ wQj?

i) gmwjb ii) R‡R©U iii) wmé

O) †K ev‡m DVvi Rb¨ mevB‡K Zvov w`j?

i) nvmvb m¨vi ii) nv‡kg m¨vi iii) nviæb m¨vi

DËi: K) ii, L) ii, M) iii, N) i O) i

2| kãv_© †jL:

K) M¤^yR = P~ov N) cÖwm× = weL¨vZ

L) wb`k©b = wPý O) wew¯§Z = AevK nIqv

M) kvmbKZ©v = cÖavb kvmK P) g¨vc = gvbwPÎ

3| mZ¨ n‡j ÔmZ¨Õ Ges wg_¨v n‡j Ôwg_¨vÕ †jL:

K) ‡mvbviMvuI bvivqYMÄ †Rjvq Aew ’Z|

L) cvbvg bM‡ii me evwo GKZjv|

M) mvwenv ev‡m D‡VB GKwU g¨vc Szwj‡q w`j|

N) ‡mvbviMvuI †cŠuQv‡ZB mvwenvi gb Avb‡›` f‡i DVj|

O) †mvbviMuvI‡q †Kvb Rv`yNi †bB |

DËi: K) mZ¨ L) wg_¨v M) wg_¨v N) mZ¨ O) wg_¨v

4| evbvb: AveiY, HwZnvwmK, g¨vc, weªR, Ac~e©, L¨vwZ, e¨emvqx, m¨vi, wb`k©b, mMe©, ¯úk©,

m ©vievwo

cÖkœ: wb‡Pi cÖkœ¸wji we¯ÍvwiZ DËi †jL:

K) Rv yNi Kv‡K e‡j? G‡`‡k †Kv_vq †jvKwkí Rv yNi i‡q‡Q?

DËi: GKwU †`‡ki wkí-ms¯‹…wZ, BwZnvm HwZ‡n¨i mKj wb`k©b ev wPý †hLv‡b msiwÿZ _v‡K Zv‡K Rv yNi e‡j|

G‡`‡k HwZnvwmK †mvbviMuvI‡q †jvKwkí Rv yNi i‡q‡Q|

L) ‡Mvqvjw` gmwR` m¤ú‡K© 3wU evK¨ †jL|

D: ‡Mvqvjw` gmwR` GK M¤yR wewkó| GwU †mvbviMuvI‡q Aew¯’Z| †gvNjiv G‡`‡k Avmvi Av‡M GwU ˆZwi n‡qwQj|

cÖkœ: wb‡Pi Aby‡”Q`wU fv‡jv K‡i co Ges cÖ‡kœi DËi `vI|

‡mvbviMvuI‡qi me‡P‡q mg„× GjvKv cvbvg bMi| Gi GKwU gvÎ iv¯Ív| Zvi `yB cv‡k mvwi mvwi †`vZjv `vjvb| G¸‡jv

cÖvq GKk eQi Av‡Mi ˆZwi| abx gmwjb Kvc‡oi e¨emvqxiv GLv‡b emevm KiZ| eZ©gv‡b †mvbviMvuI‡q i‡q‡Q

GKwU †jvKwkí Rv yNi | MÖvg evsjvi †jvK mvs¯‹…wZK aviv‡K Zz‡j aivi j‡ÿ¨ 1975 mv‡ji 12 B gvP© wkívPvh© Rqbyj

Av‡ew`b †mvbvivMuvI‡qi HwZnvwmK cvbvg bMi Gi GKwU cyiv‡bv evwo‡Z cÖwZôv K‡ib evsjv‡`k †jvK I Kviæwkí

dvD‡Ûkb| c‡i 1981 mv‡j GwU cyivZb eo m`©vievwo‡Z mwi‡q †bqv nq| GLv‡bB wZwb cieZ©x mg‡q †jvKwkí

Rv yNi cÖwZôv K‡ib| Avgv‡`i MÖvgxY gvby‡li ˆZwi wRwbmc·K e‡j †jvKwkí| Rv`yNiwUi cÖ‡ekc_ A‡bK my›`i

KviæKvR Kiv| GLv‡b i‡q‡Q Kv‡Vi ˆZwi wRwbm, gy‡Lvk, g„rcvÎ, gvwUi cyZzj, evuk-‡jvnv-Kvumvi ˆZwi wRwbm| bvbv

ai‡bi AjsKvi Ges Rvg`vwb kvwoI i‡q‡Q GLv‡b|

1| mwVK Dˇi wUK () wPý `vI:

K) cvbvg bM‡ii evwoMy‡jv KZ eQi Av‡Mi?

i) cÖvq 100 eQi ii) cÖvq 200 eQi iii) cÖvq 150 eQi

L) cvbvg bM‡i Kviv evm KiZ?

i) Rwg`viiv ii) kvm‡Kiv iii) e¨emvqxiv

DËi: K) i L) iii

2| mwVK A‡_©i wb‡P `vM `vI:

K) ‰Zwi = Rgv‡bv / evbv‡bv / `y‡UvB

L) emevm = _vKv / emv / DVv

DËi: K) evbv‡bv L) _vKv

3| GK K_vq DËi `vI:

K) †mvbviMuvI‡qi me‡P‡q mg„× bMi †KvbwU?

D: ---------------------------------------

L) †K †mvbviMuvI‡q †jvKwkí Rv`yNi cÖwZôv K‡ib?

D:--------------------------------------------

DËi: K) cvbvg bMi L) wkívPvh© Rqbyj Av‡ew`b

Subject: English Literature

Topic: Some Marvellous Adventures-II

1. Answer in one or a few words:

a) What did Baron travel by?

b) What did Baron ask the postilion to give?

c) How old was the horse which Baron took under his arm?

d) Which part of the horse was stuck in Baron’s pocket?

e) Where did the postilion hang the horn?

2. Fill in the blanks with appropriate words.

Characterization of Baron:

Baron Munchausen was a (i)________________ German nobleman by Rudolf Erich

Raspe. The real Baron fought for (ii)______________ empire. He used to tell

(iii)_________________ tales based on his military career. Similarly, the fictional Baron

focuses on his impossible (iv)___________________. In the story “Some Marvellous

Adventures” Baron was represented as a (v)_________________ who was sold as a slvae.

Answers of on word Q/A:

a) by a stage-coach

b) a signal to the other coach

c) not above four years old

d) hind legs

e) on a peg near the kitchen fire.

The solutions of the F/B:

i) fictional

ii) Russian

iii) exaggerated

iv) achievements

v) prisoner

Word meanings:

1. frost-bitten= injured by severe cold

2. postilion= a person who guides the horse without a coachman

3. hedge= a fence or boundary formed by closely growing bushes or shrubs

4. snort= to make a violent sound with nose

5. hind= back

6. peg= hook

7. thaw= become liquid or soft as a result of warming up

Answer in detail.

B/Q/A:

1. What difficulty did Baron’s coach meet in the narrow lane? How did he get over

it?

Ans: Baron travelled by the stage-coach through a narrow lane. He asked the postilion to give

a signal with his horn to avoid meetng any travellers from the opposite side. Unfortunately, the

postilion failed to make the horn sound. They met another coach from the other side and could

not go forward.

Baron solved the problem by carrying the heavy coach upon his head. Baron jumped over a

hedge about nine feet high into a field and came out again by another jump into the road beyond

the other carriage. He also brought the horses to the coach by carrying one of them upon his

head and the other one under his left arm.

2. What amazing thing happened in the inn?

Ans: Baron and the postilion arrived at the inn. The postilion hung his horn on a peg near the

kitchen fire. Suddenly they heard an amazing ‘terang! terang!’ sound from the horn. They found

out that the postilion’s tunes got frozen up in the horn because of the biting cold. Now the

sound came out by thawing as it reached the heat (warmth) of the fire. So, the postilion

entertained them with several tunes without putting his mouth to the horn.

Answer in a single sentence:

1. Why could not Baron go forward across the narrow lane?

Ans: Baron could not go forward because his postilion failed to warn the opposite coach to

stop.

2. How did Baron move the two horses?

Ans: Baron brought the horses to the coach by carrying one of them upon his head and the

other under his left arm.

3. Why did Baron imprison the horse’s hind legs?

Ans: Baron imprisoned the horse’s hind legs because it was kicking and snorting.

# Memorize the poem “Ariel’s Song” by William Shakespeare. Read from the book. (Pg.

63)

Subject: Geography

Topic: Our Earth- A Precious Planet (Chapter-16)

Save the Earth Conservation Save the Earth

afforestation (planting trees)

• Living resources include animals, plants and non -living resources include water, air, soil etc

are the vital resources for us.

• Air is important for the planet because it contains the gases necessary to support plants,

animals and other organisms.

• Water is important because it is needed for all types of living things to grow and to live.

• Soil is a home for living organisms and it provides nutrients and stability for plants to grow.

Without soil, the plants necessary for people and animals to survive could not exist.

• Air can be polluted in many ways such as- exhaust fumes of vehicles, smoke from factories

and power stations, over using of fossil fuels etc. Air pollution causes different diseases such

as- chest diseases like asthma & bronchitis.

• Soil is polluted because of using different pesticides and chemical fertilizers in the fields.

This causes the land to lose its fertility.

• 97% of the total water on the earth is salty whereas only 3% is the drinking water we have.

• Water can be polluted in many ways such as-waste from industries and urban areas are

discharged into rivers, pesticides from the agricultural fields are washed away to rivers by

rainfall and fuels from the water vehicles are filled into water.

• The consequences of water pollution: Water becomes unfit for living beings and can cause

diseases. Fishes become polluted by pollutants and can cause illness if eaten. Scarcity of

fresh and clean water occurs everywhere.

• Air becomes polluted and soil erosion increases because of deforestation. Global warming

increases as well.

• The balance in Nature means that all are equal and everything belongs to all, including the

land and everything it holds (such as oil, gas, ore, water, and so on). Balance is when

everyone has an equal attitude towards the consumption of Nature’s resources.

• We should not forget that ‘the Earth does not belong to us- we belong to the Earth’. We all

have to be together to save the Earth.

• We always have to remember that ’The Earth is precious to us’. We have to promise that

‘We always do our best to look after the Earth-our home’.

S.Q/A:

1) What are the harmful consequences of human activities on water?

Answer: The harmful consequences of human activities on water are:

a) Water becomes unfit for living beings and causes diseases.

b) Fish become contaminated by pollutants and they can cause illness if it is eaten.

c) Scarcity of fresh, clean water.

2) What does “carbon footprint” mean? Why is it important to have a small carbon

footprint?

Answer: The amount of carbon dioxide we put into the atmosphere is called carbon footprint.

It is important to have a small carbon footprint. The smaller our carbon footprint, the less we

are polluting the atmosphere.

3) Write a few sentences about the usefulness of the plants.

Answer: Usefulness of the plants:

a) Plants provide food and medicines.

b) Plants make the soil fertile.

c) Plants purify the air by taking in carbon dioxide and giving out oxygen.

d) It protects the soil from erosion.

B.Q/A: 1) How do we conserve resources of the Earth?

Answer: We can conserve the Earth’s resources through different ways. Such as

a) We can conserve energy through careful use of electricity and vehicles.

b) We can conserve paper by writing on both sides of sheets of paper to save the trees

and forests.

c) We can conserve resources by buying fewer things.

d) We can conserve water by not wasting it while bathing, washing clothes or dishes.

e) We can reduce our use of nature’s precious resources.

1. Fill in the blanks.

a) Plants and animals are ____________________ because of global warming.

b) The resources of the world are interconnected and _______________________.

c) If there is a natural ____________________, the Earth has ablily to recover.

d) Individuals, groups, organizations and governments all need to work for the

__________________.

e) We should be aware, active and remember the motto: reduce, reuse and

__________________.

2. State “True or False” for the following statements:

Answer: a) Of the total water on the earth, 97% is salty water in the oceans. ____________

b) Only about 1/10th of the land on the earth is suitable for growing crops. ____________

c) Many people feel that the biggest problem now is global warming. ____________

d) Animals provide food and medicines. ____________

e) Water is polluted because of coal and wood for fuel in many homes. ____________

3. Match the following:

Column -A Column-B Answer:

a) Human activities i) air, water, soil a) +

b) Living source ii) environmental pollution b) +

c) Non living source iii) plants, animals c) +

d) limited resource iv) brown cloud d) +

e) atmospheric pollution v) fossil fuels e) +

4. Express in one word.

a) This disease can be spread for water pollution. _______________________

b) This disease can be spread out for air pollution. _______________________

c) This fuel does not pollute the air as much as diesel. _______________________

d) This natural resource can be polluted for using different pesticides and chemical fertilizers

in the field.

_________________________

----------------------------------------------------------------------------------------------------------------

-----------

Answer: 1. F/B: a) threatened b) interdependent c) disaster d) environment e) recycle

2. True/False: a) True b) True c) True d) False e) False

3. M/F: a) + ii , b) + iii , c) + i , d) + v , e) + iv

4. Ex. in one word. a) Diarrhea / Cholera b) Asthma / Bronchitis c) Natural gas d)

Soil

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Sub: Computer Science

Descriptive Part

Ch-10 Algorithms and Flowcharts

1) What is an algorithm?

Answer: An algorithm is a step-by-step method of doing a work.

2) Write an algorithm for purchasing a book from the bookshop.

Answer:

Step 1: Taking enough money.

Step 2: Going to the bookshop.

Step 3: Telling the shopkeeper about the book I want.

Step 4: Seeing the storybooks.

Step 5: Selecting the book I want.

Step 6: Making payment.

Step 7: Receiving the receipt and carrying the new book home.

3) Write an algorithm for adding two numbers.

Answer:

Step 1: Start the program

Step 2: Get the first number, then the second number.

Step 3: Add the two numbers.

Step 4: Display the result of the addition.

Step 5: Selecting the book I want.

4) What is a flowchart? Write six symbols used in a flowchart.

Answer: A flowchart is a graphical representation of an algorithm.

Six symbols: i) Start/Stop box ii) Input/ Output

box

iii) Process box iv) Decision Box

v) Flow Line vi) Connector

5) Draw a flowchart to add two numbers and checks whether the result is an even

number or odd number.

Answer:

START

Read A and B

SUM= A+B

DISPLAY SUM

DIVIDE THE SUM BY 2

IF

REM=

0

DISPLAY “EVEN

NUMBER”

STOP

DISPLAY “ODD

NUMBER”

YES

NO

Ch-08 MS PowerPoint-Working with slides

6) Mention three main features of a PowerPoint program.

Answer: i) Making slides ii) Set animation iii) Audio and video integration

7) Name three views in MS PowerPoint program.

Answer: i) Normal View ii) Slide sorter iii) Slide show view

8) Write six non-text elements in MS PowerPoint.

Answer:

i) Picture ii) Clip Art

iii) Photo Album iv) Shapes

v) Smart Art vi) Chart

Objective Part

Topic:

• Ch-8 MS PowerPoint-Working with Slides

• Ch-10 Algorithms and Flowcharts

1. F/B Ch-8 and Ch-10

(a) ……………………………………………… box is a mandatory shape for a flowchart.

(b) A flowchart uses various geometric ………………….to denote the process and the

flow of a program.

(c) The…………………………… is used to join two parts of a program.

(d) Arrow heads are used to indicate the flow of ……………………………….

(e) ……………………… are predesigned formats in MS PowerPoint.

(f) Slide …………………………. is defined as the visual movement of slides.

Answer: a. Start/Stop b. shapes c. Connector d. information e. Templates

f. Transition

2. One/ Few word Q/As: Ch-8

(a) What type of software is MS PowerPoint? Answer: Slide

Presentation

(b) What is called the first slide of the presentation? Answer: Title slide

(c) What is the default view in the MS PowerPoint program? Answer: Normal View

(d) What is the shortcut key for running a PowerPoint presentation? Answer: F5

(e) Which view is not allowed to edit slides? Answer: Slide

show view

3. Write whether the statements are True or False: Ch-10

(a) The general direction of flow in any flowchart is from top to bottom or left to right.

(True)

(b) Start/stop box denotes where a program starts and where a program ends. (True)

(c) The first step in an algorithm is to mention the end of the program. (False)

(d) Algorithms help to plan a step-by-step process so that the task can be completed

successfully. (True)

(e) The last step in an algorithm is to mention the start of the program. (False)

4. Choose the correct answer: Ch-8

(a) In MS PowerPoint, to escape a slide:

i) ESC (√) ii) CTRL iii) SHIFT

(b) Record sound is used to

i) Insert an audio clip directly while recording. (√ )

ii) Insert an audio clip from some other audio file.

iii) Insert an audio clip directly from the clip organizer.

(c) In MS PowerPoint, Media Clips feature is found in the:

i) Design tab ii) Insert tab (√) iii) Review tab

(d) The pane that is found at the bottom of the slide area, in PowerPoint:

i) Slides pane ii) Outline pane iii) Notes pane (√)

(e) A single page of a presentation is called:

i) Slide(√) ii) Placeholder iii) Layout

5. Label the following diagram for components of MS PowerPoint:

Office

Button Quick Access Toolbar

Slide View

Area

View

Options

Ribbon

Slides Tab

Notes Pane Zoom

Slider

Status Bar

6.Match the following: [Ch-10]

A B

a) This box is always used at the beginning and at the end of a program i)

b) This is used to indicate the input and output of a program ii)

c)This box is used to carry out the main process or function of a program iii)

d) This box is called decision box and is used to specify some condition iv)

e) These arrows are the flow lines that are used to direct the process of

the program in any particular direction

v)

f) This is used to join two parts of a program vi)

Answer:

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Subject - Mathematics

Topic: Fraction

PT-1,Pg-61,62:

Express the following mixed numbers as improper fractions: 41

8, 3

3

11

Express the following improper fractions as mixed numbers: 49

8,

115

10

Reduce the following fractions to the lowest term: 16

24,

100

250

PT-3,4,Pg-65,67:

Add the following fractions: 2

9+

1

6,

5

7+

1

8, 3

1

3+ 1

4

5, 4

1

6+ 3

1

2

PT-5,6,Pg-68,69:

a + vi b + iv c + i d + v e + ii f + iii

Subtract the following: 3

4 -

3

5,

2

5 -

3

8, 9

2

9 - 3

7

8, 5

1

8 - 2

3

7

Mental Maths,Pg-71:

1

4 of a year=____months,

1

3 of a day=____hour

Topic: Decimals

PT-1,Pg-87,88:

Q1: Write the following in words: 7.85, 12.50, 1.035

Q5: Convert the given decimals into fractions: 4.89, 6.008

Q6: Convert the following fractions to decimals: 3

10,

8

25

PT-2, Pg-90:

Q1: Convert the given decimals to like decimals: 2.45,56.89,2.1

PT-3, Pg-93:

Add the following: 0.19+0.9, 8+0.98

PT-4, Pg-94:

Arrange vertically and subtract: 2.3-0.05, 0.9-0.75

PT-5, Pg-96:

Q1: Multiply the following: 1.5×0.6, 0.83×5.55

PT-6, Pg-97:

Find the product of the following: 0.58×100, 38.66×1000

PT-7, Pg-99:

Find the quotient for the following: 0.75÷5, 0.0021÷7

PT-9, Pg-101:

Divide the following: 601.43÷10, 1.4236÷100

Topic: Angles

PT-3, Pg-118

Construct the following angles and identify its type: 45°, 105°, 225°

Topic: Metric Measures

PT-1, Pg-149

Convert the following as suggested:

a) 2625 cg into dag and cg

b) 4.2 hm to m

c) 2hg 15dg into dg

PT-2, Pg-151,152

Add the following:

a)125 m 20 cm, 46 m 96 cm

Subtract the following:

a)35 kg 240 g from 72 kg 200g

N.B: Follow the C.W. copy.

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Subject: Moral Science

Topic: Caring for the environment

1. Answer the following questions:

a. What does environment mean?

Ans: Environment refers to the surroundings or conditions in which a person or animal lives. It effects

our ability to live. Like as the air we breathe, the trees, water etc.

b. How do the trees help us in summer and winter?

Ans: Trees help us in both summer and winter season. Trees provide shade for the winter season and

windbreaks for the heating season summer. In the summer the leaves of the trees around house shaded

the windows and reduce the heat. In winter all the leaves fall, the sun pours through the branches and

gives us winter warmth.

c. What is the impact of autumn on trees?

Ans: In autumn, trees are beginning to lose their leaves. Their leaves turn the pretty colors of maroon,

red, slightly purple, and the leaves harden. This is because temperatures are colder, and humidity is

almost always lower than that in summer and spring. Falling leaves seems like warm deep sponge-carpet

which saves the ground from frost.

d. How do trees help the earth?

Ans: Trees help to make Earth a healthier planet in various ways;

i. Trees absorb pollutants through their leaves and filtered the air.

ii. Trees reduce flooding and erosion.

iii. Trees lower air temperatures. They can also influence wind speed.

iv. Trees create habitat for birds and animals. Trees provide shelter and food for birds and small

animals.

v. Trees improve health by providing a relaxing effect on humans and reduce stress.

e. What is deforestation?

Ans: Cutting down trees thoughtlessly and destroying forests is called deforestation. Deforestation

occurs when forests are destroyed by cutting tress and not replanting them.

f. What are the consequences of deforestation?

Ans: As a result of deforestation, many birds and animals are becoming homeless and are slowly dying

out. The air is becoming warmer. The amount of harmful gases in the air is increasing. Without the

beautiful green forests the earth become a bare and ugly place.

g. Write a short-note on “Trees are our best friends!”

Ans: Trees are one of the greatest blessings for humans. Trees share everything with us as a best friend.

They give us their fruits, seeds, flowers, herbs and more. It is impossible for human life to survive without

trees as they are the main sources of oxygen on earth. Trees are protecting us under their shade. Trees also

provide a home for several birds and animals. Thus, trees fulfill the role of a best friend in every human

being’s life.

1. Word- meaning:

a. fragrant- having a pleasant smell.

b. unfurl- unfold.

c. soothing- to bring comfort.

d. rush- to carry forward.

e. sleet- rain containing ice.

f. tossed- to throw up in the air.

g. frost- the process of freezing.

h. pulp- soft part of fruit.

i. lumber- type of wood used in furniture.

j. deforestation- destroying forest.

2. Fill in the blanks:

a. We should take care of our __________________.

b. We must plant __________ to make our planet ______________ green.

c. A green ____________ will give us a safe and ________________ life.

d. Our green leaves catch the raindrops that fall with ______________ sound.

e. Destroying forest thoughtlessly is called _________________.

3. State whether true or false:

a. Many animals are loosing their homes because of deforestation.

(_________________)

b. Because of trees the air would become warmer.

(_________________)

c. Trees increase the amount of harmful gases in the air.

(_________________)

d. We do not depend on trees in every step of our lives.

(_________________)

e. We need to be active in taking care of our environment.

(_________________)

Answers:

2. a) environment b) trees, Earth c) Earth, healthy d) soothing e)deforestation

3. a) True. B)False c) False d) False e) True

------------------------------------------------------------------------------------------------------------------

Subject: Religious Studies

Topic: The Sacred Mosques (Ch.6 Pg.32 to38)

Objective Part

1. Circle the correct answer:

(a) Bayt-Allah means House / Mosque.

(b) The colour of kiswah is golden / black.

(c) The Prophet migrated to Madinah in 570 / 622 CE.

(d) In the early stage of Islam ,the Kabah / Masjid al-Aqsa was the qiblah.

(e) King Abrahah / Negus wanted to destroy the Kabah.

(f) The visit to the Prophet’s Mosque is called ziyarah / hijrah .

(g) The water of Zamzam / Marwah is regarded as being holy.

Answers :(a) House (b) black (c) 622 (d) Masjid al-Aqsa (e) Abrahah (f) ziyarah (g) Zamzam

(Answers from the book Exercises (pg-38)

1. Fill in the Blanks:(1) House (2) black (3) Abrahah (4) 622 (5) Masjid al-Aqsa

2. State whether True or False:(1) False (2) False (3) False (4) False

Descriptive Part

1. Short Q/A:

a) Why mosques are built? Write the name of three holy mosques?

Ans: Mosques are basically built for offering prayers. Out of all mosques, three have been declared

holy. These are: 1) Al-Masjid al-Haram 2) Al-Masjid an-Nabawi 3) Al-Masjid al-Aqsa

b) What does Al-Masjid an-Nabawi mean?

Ans: Al-Masjid an-Nabawi means ‘the Mosque of the Prophet’. This mosque is situated in the city of

Madinah in Saudi Arabia.

2. Broad Q/A:

a) Write about the Kabah.

Ans: The Kabah is situated at Makkah in Saudi Arabia. It was built by the Prophet Ibrahim (AS) and

his son Ismail (AS) upon Allah’s command. It is cube-shaped structure with a height of about 50 feet.

It is covered with a black cloth called kiswah. It contains calligraphies of Quranic texts embroidered

with gold threads.

------------------------------------------------------------------------------------------------------------------------

Subject: Science Topic: Materials Sub topic: Matter

Descriptive Part

Answer the following questions.

1. What is matter?

Ans. Matter is anything that has weight and occupies space.

2. How is combustion a chemical change?

Ans: Combustion means burning. When a substance burns, it forms smoke, gases and ash. These

substances are different from the original substance. Thus, combustion is a chemical change.

3. What is thermal conductivity? Give one example for each.

Ans: Molecules of some substances can carry heat easily. These substances are called good conductors

of heat. E.g. Metal

Molecules of some other substances are not good carriers of heat. These substances are called bad

conductors of heat or insulators. E.g. Plastic

4. What is electrical conductivity? Give one example for each.

Ans: Molecules of some substances can carry electricity. These substances are called good conductors

of electricity. E.g. Copper

Molecules of some substances cannot carry electricity through them. Such substances are called bad

conductors of electricity. E.g. Wood

5. Compare between physical and chemical change.

Ans.

Parameters Physical change Chemical change

Definition Physical change refers to a change

in which the molecules are

rearranged but their internal

composition remains same

Chemical change is a process in

which the substance transforms

into a new substance, having

different chemical composition

Example Tearing of paper, melting/ freezing

of water/ cutting of trees etc

Burning of wood/ trees/ paper,

rusting of iron etc

Nature of change Reversible Irreversible.

Original matter Original matter can be recovered Original matter cannot be

recovered

Product formation No new product is formed

New product is formed

6. Write a short note on “Gas:”

Ans: Substances which are in an air- like form that is neither solid nor liquid, are called gases. There is

very little force of attraction between the molecules of a gas. They can freely move in any direction.

The space between the molecules keeps changing. They neither have a definite shape nor do they have

a definite volume.

Matter: The term matter refers to anything that occupies space and has mass.

Atom: Atoms are basic building blocks of any matter. Combinations of these atoms are molecules.

Atoms are made of particles called protons, electrons and neutrons. Protons carry a positive electric

charge, electrons carry negative electrical charge and neutrons carry no electrical charge at all. The

protons and neutrons are heavier and stay in the middle of the atom. They are called nucleus.

State of matter: Matter exists in three states. These are: Solid, Liquid and Gas.

Physical property Solid Liquid Gas

Shapes Fixed Not fixed Not fixed

Volume Fixed Fixed Not fixed

Fluidity Does not flow easily Flows easily Flows easily

Compressibility Not easy to compress Not easy to compress Easy to compress

Solute-Some solids mix easily with liquids. The solid that dissolves in a liquid is called solute.

Solvent - The liquid in which the solute dissolves is called solvent.

Solution- The liquid which we get when a solute dissolves in a solvent is called a solution.

Solubility- The ability of a solute to dissolve in a solvent is known as its solubility.

Types of Change: (i) Physical change (ii) Chemical change

Parameters Physical change Chemical change

Definition Physical change refers to a change

in which the molecules are

rearranged but their internal

composition remains same

Chemical change is a process in

which the substance transforms

into a new substance, having

different chemical composition

Example Tearing of paper, melting/ freezing

of water/ cutting of trees etc

Burning of wood/ trees/ paper,

rusting of iron etc

Nature of change Reversible Irreversible.

Original matter Original matter can be recovered Original matter cannot be

recovered

Product formation No new product is formed

New product is formed

Objective Part

1. Fill in the blanks.

a) Matter exits in three states.

b) The molecules in solid are closely packed together.

c) Gas can move freely in any direction.

d) The attraction between molecules of liquids is less than that of solids.

e) Gas has neither definite shape nor definite volume.

2. State whether the following statements are True/ False.

a) Combustion means burning- (True)

b) The space between molecules never changes. (False)

c) Oxygen can be dissolved in water. (True)

d) Molecules of glass are different from molecules of wood. (True)

e) Rubber is good conductor of electricity. (False)

3. Answer in one word.

a) a condition of getting worn out- Corrosion

b) the ability of a substance to dissolve in another substance – Solubility

c) the smallest unit of a substance showing all its properties - Molecules

d) capable of being mixed- Miscible

-------------------------------------------------------------------------------------------------------------------------

Subject: Social Studies

Topic: Agricultural Products of Bangladesh

Descriptive Part

Answer the following questions in short:

1. What is cash crop?

Ans: The crops which are grown for direct sale and by which we can earn money are called cash

crops.

2. Name three kinds of paddy which are cultivated in Bangladesh?

Ans: The three kinds of paddy which are cultivated in Bangladesh are- Aush, Amon and Borro.

3. Where does tea grow in Bangladesh?

Ans: Tea grows in the hilly and sloppy areas of Sylhet, Habiganj, Moulovibazar and Sunamganj.

Answer the following questions in detail:

1. Give a brief description of Jute.

Ans: Jute is the main cash crop of Bangladesh. The warm climate, high temperature, heavy rainfall

and fertile loamy soil are suitable for jute cultivation. We export jute and jute products and earn a

lot of foreign currency. This is why jute is called the "Golden Fibre" of Bangladesh.

2. What do you know about the cultivation of oil seeds of Bangladesh?

Ans: Oil seeds are grown as the seasonal food crop of winter in Bangladesh. The major oil seeds

are- mustard, sesame, linseed, castor and groundnut. Soyabean cultivation has also been started in

Bangladesh. We have to import edible oil and oil seeds from abroad to meet up with our need.

Write a short note on the Pulses.

Pulses grow in almost all regions of Bangladesh. Pulses are included in the spring harvest and grows

well in loamy soil. Among the pulses gram, mashur, kheshari, moog, mashkalai, arhar etc are major

varieties.

Draw a diagram to show some sugarcanes. Colour and label it.

Objective Part

Fill in the blanks:

1. The land of Bangladesh is very _________________________ for cultivation.

2. ____________________________ is the second main food crop of our country.

3. Pulses grow well in the loamy soil and in ______________________ season.

4. Silk is collected from the ____________________________ of silkworm.

Write whether the following statements are true or false:

1. About 65% people of our country earn their livelihood by cultivation._________

2. Paddy grows on plain land and on the river bank._________

3. Wheat grows in winter season._________

4. Tobacco grows everywhere in Bangladesh._________

Circle the correct answer:

1. About 80% / 90% of the cultivable land is used for growing food crops.

2. Oil seeds are grown as the seasonal food crop of winter/ summer in Bangladesh.

3. Tea/ cotton is the second foreign exchange earning crop.

4. There are about 152 /163 tea gardens in Bangladesh.

Match the following:

1. Jute a. main food crop

2. Smoking b. saree, lungi are made of

3. Paddy c. main cash crop

4. Cotton d. bad for health

Ans: 1+____, 2+____, 3+____, 4+____.

Answer the following questions in one word:

1. What is the base of economy of Bangladesh?_______________________

2. Whish region of Bangladesh produces 90% of the total production of

tea?_____________________

3. What is Jute called?_______________________

4. What is the raw material for the production of sugar?___________________

Answers of the objective part:

Fill in the blanks:

1. fertile

2. Wheat

3. spring

4. cocoon

Write whether the following statements are true or false:

1. False

2. True

3. True

4. True

Circle the correct answer:

1. 80 %

2. winter

3. Tea

4. 163

Match the following:

1+c

2+d

3+a

4+b

Answer the following questions in one word:

1. Agriculture

2. Sylhet

3. Golden Fibre

4. Sugarcane

Information sheet on “Agricultural Resources of Bangladesh”

1. The land of Bangladesh is very fertile for cultivation.

2. The methods of cultivation is called agriculture.

3. The products of cultivation are called agricultural products.

4. About 85% people of our country earn their livelihood by cultivation.

5. The economy of Bangladesh is agriculture based.

6. The agricultural products that grow in Bangladesh can be divided into two categories; food

crops and cash crops.

Food Crops

7. Paddy, wheat, potato, oil seed and pulses are the main food crops of Bangladesh.

8. About 80% of the cultivable land is used for growing food crops.

Paddy

9. Paddy is the main food crop of Bangladesh.

10. It grows on plain land and on the river bank.

11. It grows well in hot and humid climate.

12. Aush, Amon and Borro are the three types of paddy that are cultivated in Bangladesh.

13. In Bangladesh, paddy is grown everywhere, except some hilly regions and forest areas.

Wheat

14. Wheat is the second main food crop of our country.

15. It grows in winter season.

Pulses

16. Pulses grow well in the loamy soil and in spring season.

17. Gram, Mashur, Kheshari, Moog, Mashkalai, Arhar etc. are the major varities of pulses.

Oil Seeds

18. Oil seeds are grown as the seasonal food crop of winter in Bangladesh.

19. The major oil seeds are: mustard, sesame, linseed, castor, groundnut and soyabean.

Paddy Wheat Pulse

Information sheet on “Agricultural Resources of Bangladesh”

1. Cash crops are those crops by selling which we can earn money.

2. Major cash crops are jute, tea, sugarcane, tobacco, betel leaf, cotton and silk.

3. These crops are grown for direct sale.

Jute

4. Jute is the main cash crop of Bangladesh.

5. Jute requires warm climate, high temperature, heavy rainfall and fertile loamy soil to grow.

6. Jute is called the “Golden Fiber” of Bangladesh.

7. We can earn a lot of foreign currency by exporting jute and jute products.

Tea

8. Tea is the second cash crop to earn foreign exchange.

9. Tea requires heavy rainfall, high temperature and slanted hilly and sloppy areas.

10. Specially Sylhet region alone produces 90% of total production of the country.

11. There are about 163 tea gardens in Bangladesh.

Cotton

12. High temperature, moderate rainfall, lime stone mixed loamy soil are suitable to grow cotton.

13. Saree, lungi and other comfortable clothes are made of cotton.

Silk

14. Silk is collected from the cocoon of silkworm.

15. Dry weather and high land are good for silk cultivation.

Tobacco

16. Tobacco grows everywhere in Bangladesh.

17. It grows well in hot and humid climate.

18. Smoking is bad for health.

Sugarcane

19. Sugarcane is used as raw material for the production of sugar.

Jute Tea Cotton Tobacco