When the magnetic field of Earth is reversed,
A) Earth flips over in its orbit.
B) Earth's rotation is also reversed.
C) newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field.
Question 2
Detailed mapping of the ocean floors revealed
A) huge mountain ranges beneath the oceans.
B) deep trenches near some of the continents.
C) that the oceans are equally deep at all locations.
D) huge mountain ranges on the ocean floor, and deep trenches near some of the continents.
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