If the material that formed the Moon was debris from a collision between the early Earth and another body, what can we predict about the composition of moon rocks collected by Apollo astronauts?
A. Moon rocks should have some similar and some different compositional characteristics.
B. Moon rocks should have the same composition as rocks found on and inside Earth.
C. Moon rocks should have a composition that is the same as Earth's crust.
D. Moon rocks should have a completely different composition than rocks found on Earth.
Answer: A
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