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: Which process involves solvent separation on a solid medium? Answer: chromatography
Example Output: Chromatography involves solvent separation on a solid medium.

Example Input: Question: What do osteoblasts secrete that mineralizes to become bone matrix? Answer: collagen
Example Output: Osteoblasts make new bone cells and secrete collagen that mineralizes to become bone matrix. They are responsible for bone growth and the uptake of minerals from the blood.

Example Input: Question: What type of carbon dioxide levels have been rising for the past several decades? Answer: atmospheric
Example Output:
Atmospheric carbon dioxide levels have been rising for the past several decades.