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.

Question: Living organisms are comprised of organic compounds, which are molecules built around what element? Answer: carbon
Living organisms are comprised of organic compounds, molecules built around the element carbon.

Question: What is the point on the ground that is located directly above where underground rocks fracture (or the "focus" point)? Answer: epicenter
The focus is where the rocks rupture. The epicenter is the point on the ground directly above the focus.

Question: Amphibians may attract mates with what? Answer: calls or scents
Amphibians may attract mates with calls or scents.