Multiple Choice
The dark markings near the equator of Mars show seasonal variations because of:
A) changes in coverage of rocks by CO2 ice as the temperature varies from above to below the freezing point of CO2.
B) changes in the growth of vegetation.
C) changes in the flow of water released from permafrost by sunlight.
D) variations in the dust coverage of the surface.
Correct Answer:
Verified
Correct Answer:
Verified
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