Over time, the star- gas- star cycle leads the gas in the Milky Way to .
A) become denser and hotter
B) become denser and have a greater abundance of heavy elements
C) have a lower abundance of heavy elements
D) have a greater abundance of heavy elements
Correct Answer:
Verified
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Q18: What elements do astronomers consider heavy elements?
A)elements
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A)in molecular
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Q24: Based on observations, which of the following
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