instruction:
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:
Question: The mechanical advantage of a machine is related to how it changes what? Answer: force
answer:
The mechanical advantage of a machine is related to how it changes force. Explain this relationship.

question:
Question: What is the term for land that has permanently frozen soil? Answer: permafrost
answer:
Permafrost is land with permanently frozen soil.

question:
Question: Volcanoes can be active, dormant, or what else? Answer: extinct
answer:
Volcanoes can be active, dormant, or extinct.