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.

Input: Consider Input: Question: What is the main function of the cardiovascular system? Answer: to transport

Output: Many ecosystems have changed because of human actions. The human species is responsible for a range of environmental problems.

Input: Consider Input: Question: What do we call the seasonal movement of animals? Answer: migration

Output: Monarch butterflies gather in large groups as they migrate 2,500 miles south each fall. They return to the north in the spring. This migration is a cycle that repeats every year.

Input: Consider Input: Question: What change can you expect in vectors that are perpendicular to each other? Answer: no effect
Output: Vectors that are perpendicular to each other have no effect on each other.