Multiple choice

What system has been created to purify wastewater before it is reused?

  1. low-flow faucets

  2. conservation at home

  3. bottling water

  4. water treatment plants

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

Water treatment plants are specifically designed to filter and purify wastewater, removing contaminants so the water can be safely returned to the environment or reused.