Multiple choice

Wetlands help control flooding by

  1. quickly releasing water.

  2. collecting water behind dams.

  3. providing natural water filtration.

  4. absorbing runoff from heavy rains.

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

Wetlands act as natural sponges that soak up excess water during heavy rainfall. This process slows down water movement and reduces the peak flow of runoff, which helps prevent downstream flooding.