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The bright, heavily cratered lunar highlands make up what share of the Moon's crust?
A17 percent
B83 percent
C45 percent
D55 percent
Answer & Solution
Correct answer: B. 83 percent
1. The lunar surface splits into bright highlands and dark maria.
2. The highlands are made of anorthosites and cover 83 percent of the crust.
3. The maria hold the remaining 17 percent, which is the figure the trap offers.
4. Because the highlands are older, they carry far more craters than the maria.
_Source: OpenStax Astronomy (CC BY 4.0), section 9.2 The Lunar Surface_
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