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.

Q: Question: Electrons in the "outer shell" are also known as what kind of electrons? Answer: valence

A: Determine the total number of valence (outer shell) electrons. For cations, subtract one electron for each.
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Q: Question: What does rising and sinking air influence in a region? Answer: precipitation

A: Rising and sinking air can influence the precipitation of a region.
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Q: Question: What is the term for an amount of force pushing against a given area? Answer: pressure

A:
Gas particles are constantly moving and bumping into things, and this creates force. The amount of force pushing against a given area is called pressure.
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