A) What do you understand by “Watershed Management”? List any two advantages of watershed management. b) “Human beings occupy the top level in any food chain.” What are the consequences of this on our body?
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A)conserving the rain water by building the sheds and transfering them to fields.
B)I t results in filling the body with more chemicals and pesticides fertilisers
this leads to decrease in life span ofhuman
B)I t results in filling the body with more chemicals and pesticides fertilisers
this leads to decrease in life span ofhuman
Answered by
57
(A) Watershed management is the study of the characteristics of a watershed that manages the water quality, water supply, drainage, rain water flow and other sustainable maintenance planning regarding a watershed.
Advantage:
Water quality is strictly maintained.Distribution of water is equal and sustainable.Protection from flood condition by controlling rain water flow.
(B) As human beings occupy the top level in any food chain, the maximum concentration of the harmful chemicals gets accumulated in our bodies. This phenomenon is known as biological magnification. This is the reason why our food grains such as wheat and rice, vegetables and fruits, and even meat, contain varying amounts of pesticide residues. They cannot always be removed by washing or other means.
Advantage:
Water quality is strictly maintained.Distribution of water is equal and sustainable.Protection from flood condition by controlling rain water flow.
(B) As human beings occupy the top level in any food chain, the maximum concentration of the harmful chemicals gets accumulated in our bodies. This phenomenon is known as biological magnification. This is the reason why our food grains such as wheat and rice, vegetables and fruits, and even meat, contain varying amounts of pesticide residues. They cannot always be removed by washing or other means.
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