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.

Ex Input:
Question: What substance, involved in most biochemical reactions, is essential to life? Answer: water

Ex Output:
Water is involved in most biochemical reactions. Therefore, water is essential to life.

Ex Input:
Question: What occurs at joints? Answer: body movements

Ex Output:
Movements of the body occur at joints. Describe how muscles are arranged around the joints of the body.

Ex Input:
Question: Nitrogen and sulfur oxides form what type of rain? Answer: acid rain

Ex Output:
Both nitrogen and sulfur oxides are toxic to humans. These compounds can cause lung diseases or make them worse. Nitrogen and sulfur oxides form acid rain, which is described in the next concept.