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 are the light wavelengths that the human eye can detect called? Answer: visible light

Output: Describe hotspots and the volcanic activity they create.

Input: Consider Input: Question: What is used to fluoridate drinking water to promote dental health Answer: calcium fluoride

Output: Calcium fluoride is used to fluoridate drinking water to promote dental health. Crystalline CaF 2 (d = 3.1805 3.

Input: Consider Input: Question: Experiments have shown that acceleration is exactly inversely proportional to mass, just as it is exactly linearly proportional to what? Answer: net external force
Output: where m is the mass of the system. Experiments have shown that acceleration is exactly inversely proportional to mass, just as it is exactly linearly proportional to the net external force.