How did the lunar maria most likely originate?
A)huge impact basins that were nearly filled with basaltic lava flows
B)Huge impact craters filled with frozen carbon dioxide and dark-colored silt and dust.
C)Massive, basaltic comets melted when they hit the lunar surface.
D)The solar wind eroded very wide, shallow basins that filled with lunar dust.

Question

Quizplus · Accepted Answer

The lunar maria are large, dark, flat areas on the Moon's surface that were formed by ancient volcanic eruptions. It is believed that these eruptions were triggered by massive impacts on the Moon's surface, which created basins that were then filled with basaltic lava flows. These basalts are darker than the surrounding highlands, giving the maria their distinctive appearance.

How Did the Lunar Maria Most Likely Originate