What combination of factors is the driving force behind our changing seasons?

Answer

Axial tilt combined with revolution

The changing seasons are caused by the predictable shift in the angle of incoming solar radiation, which is directly traceable to the Earth's axial tilt combined with its annual orbit around the Sun.

What combination of factors is the driving force behind our changing seasons?

#Videos

Movements of the Earth - Earth's Revolution & Rotation - YouTube

Earth's Rotation & Revolution: Crash Course Kids 8.1 - YouTube

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