Section E: Answer the questions based on the case described below.
Human body is made up of five important components, of which water is the main component. Food as well as potable water are essential for every human being. The food is obtained from plants through agriculture.
Pesticides are being used extensively for a high yield in the fields. These pesticides are absorbed by the plants from the soil along with water and minerals and from the water bodies these pesticides are taken up by the aquatic animals and plants.
As these chemicals are not biodegradable, they get accumulated progressively at each trophic level. The maximum concentration of these chemicals gets accumulated in our bodies. and greatly affects the health of our mind and body.
Pesticides are being used extensively for a high yield in the fields. These pesticides are absorbed by the plants from the soil along with water and minerals and from the water bodies these pesticides are taken up by the aquatic animals and plants.
As these chemicals are not biodegradable, they get accumulated progressively at each trophic level. The maximum concentration of these chemicals gets accumulated in our bodies. and greatly affects the health of our mind and body.
i. Why is the maximum concentration of pesticides found in human beings?
The maximum concentration of pesticides is found in humans due toas they are at the top of the food chain.
ii. Give one method which could be applied to reduce our intake of pesticides through food to some extent.
Washing fruits and vegetables thoroughly or can reduce pesticide intake.
iii. Various steps in a food chain represent .
iv. With regard to various food chains operating in an ecosystem, man is a .
v. The decomposers are not included in any food chain. Why?