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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
How is water ice able to remain on the surface of Mercury, despite the planet's close proximity to the Sun?
A)   It is continuously replenished by condensation of water vapor from volcanoes.
B)   It is continuously replenished by fresh impacts from comets.
C)   It exists as permafrost below the thermally insulating surface, being exposed only by occasional impacts.
D)   It is permanently shielded from the Sun by crater walls at the north and south poles.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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staedtler Author
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7 years ago
Person Raising Both Hands in Celebration

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