instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: Predators can replace what tool in agriculture. Answer: pesticides
answer:
Predator species such as birds and spiders control insect pests. They reduce the need for chemical pesticides, which are expensive and may be harmful to human beings and other organisms.

question:
Question: What do people apply to their lawns that causes water pollution? Answer: chemicals
answer:
People pollute water when they apply excess chemicals to their lawn. They may also dispose of pollutants incorrectly.

question:
Question: Where do plates move apart in oceans and on land? Answer: divergent plate boundaries
answer:
Plates move apart at divergent plate boundaries. This can occur in the oceans or on land.