Question

pesticide use and misuse
what term is used to describe a
phenomenon in which pests become
resistant to a pesticide over time – making
farmers apply more and more pesticide
each time they spray?
pesticide treadmill
chlorinated hydrocarbons

Explanation:

The term "Pesticide treadmill" refers to the cycle where pests develop resistance to pesticides, forcing farmers to use increasing amounts of pesticides. "Chlorinated hydrocarbons" are a type of pesticide, not the term for this phenomenon.

Answer:

A. Pesticide treadmill