Question

What is the origin of the energy that drives the water cycle?

• A. Trees
• B. Water
• C. Mountains
• D. Sun

Answer 1

The correct option is D Sun

• The water cycle involves the evaporation of water into water vapour by the heat of the sun.
• The water vapour rises up and due to the cold temperature of the atmosphere at higher levels, the vapour condenses into tiny water droplets.
• When the droplets are heavy, they fall on the earth as rain. Solar radiation plays an important role in the water cycle.
• 
  

Hence, the correct answer is option D.