What causes the seasons on Earth?
Seasons are caused by the tilt of Earth's rotational axis, about 23.5 degrees, not by changes in Earth's distance from the Sun.
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Science
Earth Science
Why can't we feel the Earth spinning?
We feel changes in motion, not steady motion. Earth's spin is smooth, we and the air move with it, and gravity far outweighs the tiny outward effect of rotation.
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