The Primary Cause of Earth's Seasons Is

question 71

Multiple Choice

The primary cause of Earth's seasons is:

• A)changes in atmospheric thickness.
• B)varying orbital speed.
• C)tilt of Earth's rotation axis,which causes sun angles and daylight length to vary.
• D)regular changes in radiation emitted by the Sun.
• E)varying distance from the Sun,which changes how much radiation Earth receives from the Sun.

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