Multiple choice

The water cycle would not occur if which of the following were missing?

  1. Animals

  2. plants

  3. Ice caps

  4. solar energy

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar energy from the Sun drives the water cycle by heating liquid water on Earth's surface, causing it to evaporate into water vapor. Without this heat source, evaporation would cease, and the cycle would stop.