Multiple Choice
The origin of the Martian magnetic field appears to be
A) magnetic material deposited by impacts of iron meteorites.
B) an electric dynamo still operating in the small Martian core.
C) convection of molten, iron-rich lava in the Martian mantle.
D) remnant magnetism from an earlier global magnetic field when Mars was young.
Correct Answer:

Verified
Correct Answer:
Verified
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