Standard Science Primary 4 Cycles

What is the primary source of energy that drives the water cycle on Earth?

A Volcanic activity
B The Moon
C The Sun
D Wind
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Worked Solution

Step 1: The water cycle requires heat for evaporation and transpiration. Step [2-9]: The Sun provides solar radiation (heat energy) to the Earth's surface. Step [2-9]: This energy causes water from oceans and plants to turn into vapour.

Correct answer: The Sun

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