What Is the Most Likely Cause of the Smooth and Relatively

question 70

Multiple Choice

What is the most likely cause of the smooth and relatively crater-free surfaces of lunar maria?

• A) Volcanic ash that rained on the surfaces of the basins in recent geological times
• B) Dust storms that eroded and smoothed the surface
• C) Sediments left behind after water flowed into the basins and evaporated
• D) Lava flows relatively late in the geological history of the Moon

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Definitions:

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