Explain why the Earth has seasons - Earth Science

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Question

What causes Earth's change of seasons?

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Answer

The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the "ecliptic plane" (the imaginary surface formed by it's almost-circular path around the sun).

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