What are the conditions necessary for a terrestrial planet to have a strong magnetic field?
A) a molten metallic core only
B) fast rotation only
C) a rocky mantle only
D) both a molten metallic core and reasonably fast rotation
E) both a metal core and a rocky mantle
Correct Answer:
Verified
Q28: Which of the following has virtually no
Q29: When we see a region of a
Q30: Which of the following describes volcanism?
A)the excavation
Q31: Why does the Moon have a layer
Q32: Which two properties are most important in
Q34: Which of the following does not have
Q35: Volcanism is more likely on a planet
Q36: What kind of surface features may result
Q37: Which of the following describes erosion?
A)the excavation
Q38: The relatively few craters that we see
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