Discussion
What would happen if the earth does not rotate?
Answer: D
The keyed answer is Life would not have been possible on the earth.
Rotation on its axis gives the earth its cycle of day and night. If the earth did not rotate, the half facing the sun would have continuous day and keep heating up, while the other half would stay in darkness and become extremely cold. Such extremes of temperature would not allow life as we know it.
The other options misread the result. There would be no alternation of shorter or longer days and nights at all, so the first two options fail. Seasons are caused by the earth's revolution around the sun and the tilt of its axis, not by rotation, so 'rapid change in seasons' is also wrong.
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