When air rapidly expands, its temperature will
1) decrease,
2) increase,
3) stay the same,
whereas when air is rapidly compressed, its temperature will
4) decrease.
5) increase.
6) stay the same.
Answer: 1, 5
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A) planetary nebulae B) globular clusters C) spiral arms D) galactic center E) galactic disk
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Fill in the blank(s) with correct word
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