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The lunar maria appear smooth because they areA)regions where craters have been obliterated by ...

doit_the_clown

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The lunar maria appear smooth because they areA)regions where craters have been obliterated by ...

The lunar maria appear smooth because they are
A)   regions where craters have been obliterated by crustal deformation caused by hot spots and volcanic lava flow from the underlying molten mantle.
B)   recent lava flows, occurring within the last billion years, that have obliterated earlier craters.
C)   ancient lava flows that occurred soon after the end of an early period of intense bombardment and that have had relatively few impacts since then.
D)   ancient sea beds, now dry, dating back to when the Moon had a denser atmosphere and rainfall was abundant.

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Discovering the Universe

Edition: 7^th

Authors: Kaufmann, Comins

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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein

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doit_the_clown Author

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7 years ago

Good timing, thanks!

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I appreciate what you did here, answered it right Smiling Face with Open Mouth

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