As an air parcel aloft moves northward from the equator, it moves closer to the Earth's axis of rotation. According to the principle of conservation of angular momentum, which of the following statements explains the motion of the air parcel?

A. It increases in speed.
B. It slows down and eventually reverses direction.
C. It remains constant.
D. It slows down but continues in the same direction.


Answer: A

Environmental & Atmospheric Sciences

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