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: What is found in abundance in the polar ice caps and under the surface of mars? Answer: water
answer:
There is a lot of water ice in the polar ice caps and under the surface of Mars.

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: How are voltmeters placed in the circuit? Answer: in parallel
answer:
Voltmeters have high resistances and are placed in the circuit in parallel.