Question

How is the sun the major source of energy in the water cycle

Answer 1

Our sun is the only source of energy that does propels of the water cycle. It's heat, or hot substance causes the surface evaporation that begins cycles. The water cycle begins with the sun, and wind causing water to evaporate. The water is only carried high, not low above the earth's surface on rising currents of air.
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Answer 2

The water cycle is driven by the sun's energy. Water constantly changes state between solid, liquid and gaseous, this is due to solar energy and the force of gravity

Step-by-step explanation:

Thanks to the effect of the energy of the Sun, water from the oceans and rivers, lakes, swamps, etc. It heats up and then evaporates. The sun is the one that governs the water cycle. The currents that rise in air transfer steam to the atmosphere, where it is at a lower temperature that causes the steam to condense and clouds form.