Geography · Solar Cycles & Climate
Which natural phenomenon causes periodic cyclical fluctuations in Total Solar Irradiance (TSI) reaching Earth over a short term?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The Sun's regular 11-year solar activity cycle✓
- 2Plate tectonics and Himalayan orogeny
- 3Shifts in the Atlantic Meridional Overturning Circulation (AMOC)
- 4Milankovitch cycles involving orbital eccentricity
Correct answer
The Sun's regular 11-year solar activity cycle
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