Multiple choice

Thermal energy from the sun and gravity are the engine of the water cycle because...

  1. Gravity allows water to evaporate

  2. The sun allows water evaporation and causes rain or snow

  3. Gravity moves the air and makes the wind

  4. Gravity allows water to go from the atmosphere to the ground
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The water cycle is driven by solar energy (causing evaporation) and gravity (causing precipitation to fall and water to flow downhill). Option D correctly identifies gravity's role in moving water from the atmosphere to the ground.

Keep practicing — related questions