Question

How does pesticides enters our food chain?

• A. By residue deposition in animal tissues
• B. By storing in animal stomach
• C. By chemicals deposited in nails and feathers
• D. None of the choices

Answer 1

The correct option is A

By residue deposition in animal tissues

Pesticides can enter the food chain in many ways. When pesticides sprayed on crops, and consumed as fodder by livestock, can leave residue in animals. Similarly, when pesticides wash off with rainwater into streams can cause the planktons absorb these into system and in turn eaten up by aquatic animals. Fishes consumed later by humans can cause lethal effect of these chemicals.