Earth's Magnetic Field ____. ​

question 32

Multiple Choice

Earth's magnetic field ____. ​

• A)changes polarity due to motions in Earth's mantle, while plate motion remains relatively stable
• B)changes polarity due to motions in Earth's core, while plate motion remains relatively stable
• C)changes polarity due to motions in Earth's crust, while plate motion remains relatively stable
• D)remains stable, while plate motion oscillates back and forth
• E)remains stable, while magma motion oscillates back and forth

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Definitions:

Contingency

A forthcoming incident or situation which may occur but its certainty cannot be ascertained.

Conditional Statement

A statement in logic that involves an if-then structure, asserting that if one thing is true, then another will follow.

Contradictory

Describing propositions, beliefs, or statements that are mutually opposed or inconsistent, such that if one is true, the other must be false.

Antecedent

The conditional part of a hypothetical proposition, typically preceding and implying the consequence.