WONDER #2733: How Does a Wastewater Treatment Plant Work?
Question 1 of 3
In the U.S. alone, there are about ___________ wastewater treatment plants.
- 1 million
Question 2 of 3
Which of the following is NOT a step in the treatment of wastewater, according to this Wonder?
- The water is aerated.
- The water passes through screens that catch debris.
- The water is tested by plant officials who drink it.
- The water is disinfected.
Question 3 of 3
Materials like oil and soap that rise to the surface of the water are called _______.
Check your answers online at https://wonderopolis.org/wonder/How-Does-a-Wastewater-Treatment-Plant-Work.