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.

Example Input: Question: Predators can replace what tool in agriculture. Answer: pesticides
Example Output: 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.

Example Input: Question: What is the term for land that has permanently frozen soil? Answer: permafrost
Example Output: Permafrost is land with permanently frozen soil.

Example Input: Question: Seawalls and breakwaters are built parallel to what? Answer: shore
Example Output:
Seawalls and breakwaters are built parallel to the shore.