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: The distance between two crests of a wave of light is referred to as what, which is related to the color of light? Answer: wavelength
Example Output: wavelength : The distance between two crests of a wave of light. The color of light is related to its wavelength. This is inversely proportional to frequency.

Example Input: Question: When the volume of a gas is decreased, what happens to its pressure? Answer: increases
Example Output: When the volume of a gas is decreased, its pressure is increased.

Example Input: Question: What are two basic types of pollutants in the air? Answer: primary and secondary pollutants
Example Output:
There are two basic types of pollutants in air. They are known as primary pollutants and secondary pollutants.