Based on the assumption that a liquid, conducting core and rapid rotation are both required for a magnetic dynamo to operate, which terrestrial planets would you expect to have magnetic fields?
A) only Earth
B) only Earth, Venus, and Mars
C) only Earth and Mars
D) only Earth and Mercury
E) Earth, Venus, Mars, and Mercury

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The Answer of Based on the assumption that a liquid, conducting core and rapid rotation are both required for a magnetic dynamo to operate, which terrestrial planets would you expect to have magnetic fields?
A) only Earth
B) only Earth, Venus, and Mars
C) only Earth and Mars
D) only Earth and Mercury
E) Earth, Venus, Mars, and Mercury

Based on the Assumption That a Liquid, Conducting Core and Rapid