Question

What is the main problem caused by the use of pesticides?

• A. Their residues persists in water and other components of the environment.
• B. Mosquitoes have become resistant to DDT.
• C. They kill silkworm.
• D. They deform the gills of some fishes.

Answer 1

Answer: (A)

Their residues persists in water and other components of the environment.

Pesticides are substances or a mixture of substances of chemical or biological origin, used by human society to mitigate or repel pests such as bacteria, nematodes, insects, mites, mollusks, birds, rodents, and other organisms that affect food production or human health. A major problem with the use of pesticide has been that they do not breakdown in the environment, but remain toxic to fish, animals, and humans for many years.

Thus, the correct answer is option A.