Question

18. Study the food chain given below
Grass Sheep or goat Man
Algae fish Man
Who is the ultimate sufferer of using pesticides a like DDT on land and
water ? Give reasons..​

Answer 1

Answer:

Man.

Explanation:

Human suffers due to bioaccumilation.

Answer 2

Answer:

The ultimate sufferer of using pesticides like DDT on land and water is Man.

Explanation:

• The man is the ultimate sufferer of using pesticides on land and water because of the bioaccumulation.
• Bioaccumulation is the process by which the chemicals or pesticides accumulate slowly in an organism.
• When the rate of absorption of a toxic substance is greater than the rate of excretion of that substance, the chemical gets bioaccumulated.
• The pesticide on land and water initially affects the producers (grass/algae) of the food chain.
• The chemical is gradually passed from producers to consumers, thus affecting humans who are the ultimate consumers in this case.
• It causes different health issues in humans both acute and chronic issues including blisters, rashes, blindness, nausea, and sometimes death.