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Each of Earth's seasons lasts approximately three months.
Which of the following would cause the length of Earth's seasons to change?
A change in the length of time required for Earth to revolve around the Sun.
A change in the length of time required for Earth to rotate once on its axis.
A change in the relative output of solar radiation as the Sun cycles through its own seasons.
An increase or decrease in the intensity of solar storms.
Climate change on Earth, which would relate to cloud cover that affects insolation (incoming solar radiation).