The use of pesticides can create other problems.

a. True

b. False

The answer is true. Even though they were made to kill pests who feed on plants that we gather for food, if it was made with toxic substances, they can do more harm than good. Use of such substances may eventually harm humans.

True. Insects, in particular, develop resistance to pesticides over time, causing humans to use yet another pesticide. Pesticide is believed to be a factor in the decline of honey bees, a world pollinator.