Multiple Choice
Mascons, or concentrations of high-density material detected by their effect on the orbits of spacecraft, appear to be coincident with which features on the Moon's surface?
A) north and south polar regions that are never sunlit
B) new craters surrounded by radially aligned lighter markings
C) highest mountain ranges on the lunar surface
D) large maria
Correct Answer:

Verified
Correct Answer:
Verified
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