Question

Why does a pesticide lose its effectiveness over time?

a
The pests become resistant.
b
The pests become contaminated.
c
The pesticide accumulates in the bodies of the pests.
d
The pesticide expires within a week of being sprayed.

Answer 1

[AI-generated answer — Bot GPT 3.5]

a) The pests become resistant.

Over time, pests can develop genetic resistance to the pesticides that are used to control them. This can happen through natural selection, as the pests that are less affected by the pesticide survive and reproduce, passing on their resistance to the next generations. This decreased susceptibility to the pesticide can reduce its effectiveness in controlling the pest population.