Two Conditions That Appear to Be Necessary for the Generation

question 242

Multiple Choice

Two conditions that appear to be necessary for the generation of a powerful magnetic field in planets that are NOT present simultaneously on Mercury are:

• A) rapid rotation and a molten iron core.
• B) a molten core and a significant atmosphere.
• C) rapid rotation and a conducting atmosphere.
• D) a solid surface and a significant iron content.

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Definitions:

Copper Mines

Sites where copper ore is extracted from the Earth, typically through open pit or underground mining methods.

Iron Mines

Locations or operations where iron ore is extracted from the earth, typically through open pit or underground mining techniques.

Precipitation

Any form of water, liquid or solid, that falls from clouds and reaches the ground, including rain, snow, sleet, and hail.

Geologic Histories

The study and documentation of Earth's past based on the analysis of rocks, fossils, and other geological data.