Pollution and Pollution Control

11. What is the purpose of wastewater treatment plants?

a) To generate electricity

b) To conserve water

c) To remove pollutants from wastewater

d) To produce drinking water

12. What is the main cause of air pollution from vehicles?

a) Exhaust emissions

b) Tire wear

c) Engine noise

d) Vehicle design

13. What are the major sources of noise pollution?

a) Construction sites

b) Television sound

c) Plant respiration

d) Sunlight

14. What is the main cause of soil erosion?

a) Heavy rainfall

b) Plant roots

c) Air pollution

d) Soil fertility

15. What is an example of non-point source pollution?

a) Factory emissions

b) Sewage treatment plants

c) Oil spills

d) Agricultural runoff