Mahmuda Siddika Mousumi

Sheikh ShuhanaFarjana Ahmed

School: Dagaon Girls M.E SchoolClass VIII

Sub: S. ScienceChapter: 1.Natural

Resource

Natural Resources:-

• Natural resources occur naturally within environments that exist relatively undisturbed by humanity, in a natural form .A natural resource is often characterized by amounts of

biodiversity and geodiversity existent in various ecosystems.

• http://en.wikipedia.org/wiki/Natural_resource

The use of land in urban and rural area:-

Land resources can be taken to mean the resources available from the land. The agricultural land which contain natural fertiliser for growth of the products sown. The under ground water, the various minerals like coal bauxite, gold and other raw materials. The more a country is able to locate and use the raw materials the more the industrialisation of that country, area etc. In a wider sense land resource can also mean the like non agricultural lands for buildings, developing townships etc

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How to use land in urban and rural area.

• The rural-urban fringe, also known as the outskirts or the urban hinterland, can be described as the landscapes in terraced bet wan the transition zone where urban and rural wises mix and often clash, alternatively it can be viewed as a landscape type in its own right, one forged from an interavlion of urban and rural land uses.

• http://en.wikipedia.org/wiki/Rural%E2%80%93urban_fringe

Make a list of land degradation .

• Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land .also environmental degradation is the gradual des trucition of the quality and quantity of human activities animals activities or natural means example water causes soil erosion, wind, etc.

• http://en.wikipedia.org/wiki/Land_degradation

Reason of land degradation.

• Soil erosion • Loss of soil fertility• Soil structure change• Salinisation• Soil pollution• Desertification• Loss of vegetation cover• Introduced herbivores such as rabbits and goals• Increases of Populations of native herbivores such as

kangaroos.• Over use of irrigation water.• http://contactnorth.ca/shlc/ecotourism/Ecotourism%20Toolbox/topic_ei/ei_bi01_read04.htm

How to protect land degradation.

• 5 ways to reduce land degradation gardening• Afforestation and reforestation• Conservation tillage• Constructing wind breakers• Using fertilizers• Responsible industrial and chemical waste

• http://www.godfreyhoffman.com/Civil-Engineering-Blog/bid/297005/How-Can-You-Reduce-Land-Degradation-in-Connecticut

What will happened not protecting land degradation.

• Loss of natural fertility of soil because of loss of nutrients • Less vegetation cover,• Changes in the characteristic of soil• Pollution of water resources from the contamination of soil

through which water sweeps into ground or run of to the water bodies.

• Chang in climatic conditions because of un balanced created in the environment.

• http://www.yourarticlelibrary.com/land/land-degradation-meaning-causes-and-prevention-of-land-degradation/12338