Multiple choice

Fresh water is a precious resource. People build ____ across rivers to create ____ of water.

  1. Chlorine; dams

  2. pollution; floods

  3. Dams; reservoirs

  4. Aquifers; dams

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

Dams are built across rivers to block water flow, creating reservoirs (large artificial lakes) that store fresh water for human use, irrigation, and power generation.