What can you see in the picture
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Transcript of What can you see in the picture
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What can you see in the picture
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Where do I come from
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ICome from
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Rain
River
Lake
Well
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Can you drink me
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What am I Called
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I am called sewage or waste water
I will tell you how I became like this
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Ch.18 Waste StoryWater
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PICTURE 1 PICTURE 2
What difference can you see ?
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How you think I
became
Became like this ?
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I will tell you how
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industrial
water
riverside
Waste
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How people make me dirty Home
Kitchen waste Cleaning the
house Watering plants
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How people make me dirty
Hospital Disposal of
medicines Cleaning surgical
instruments
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How people make me dirty Daily activities
Bathing Washing utensils Shaving
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How people make me dirty
Mining Cleaning ore Other activities
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How people make me dirty
Industries
Releasing chemical waste
Diluting chemicals
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The waste from above all areas is called as the sewage.
The dissolved impurities are called as pollutants or contaminants
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1.Phosphates & nitrates2.Metals like iron copper zinc
1.Urine & excreta2.Kitchen waste3.Animal waste
Organic impuritiesInorganic
impurities
Nutrients
SEWAGE
Bacteria1. Typhoid
bacteria2. Cholera
bacteria
1.Nitrogen2.Phosperous
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PurificationOf
SewageFiltration Chlorination
Removing of impurities and contaminants
Using chlorine to clean water
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Use of mouse is compulsory
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1. Sewage is mainly generated from which of these?
Houses
Hospitalsoffices
Factories
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2. Which of the process is used to remove dirt and sand from wastewater
Filtration
AerationChlorination
Sedimentation
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3. Aeration of water during waste water treatment removes which of these?
Germs
Insoluble thingsHuman waste
Bacteria
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4. Which of the process during wastewater treatment helps in killing germs
Flocculation
AerationChlorination
Sedimentation
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5. Which of these disease can happen after drinking contaminated water
Small pox
MalariaCholera
Pneumonia
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6. Jaundice affects which organ
Stomach
HeartLungs
Liver
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7. Which method can be used to make ocean water fit for drinking
Chlorination
Reverse osmosisBoiling
Filtration
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THANK YOUFor
Playing
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T H A N KY OU