Multiple Choice
A distinct area of unusually jumbled,hilly terrain has been found on Mercury.This terrain was formed by
A) upwelling of magma while Mercury was still hot enough for its mantle to be tectonically active.
B) the impact of a large comet.
C) an intense shower of meteoroids near the end of the heavy bombardment era.
D) the focusing of seismic waves generated by the Caloris impact.
Correct Answer:

Verified
Correct Answer:
Verified
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