1. Which of the following is an example of nonpoint source pollution?
A. industrial discharge
B. a leaking gas line
C. an oil spill
D. stormwater runoff
2. Which of the following is a type of water pollution caused by leaded gas, the production of some pesticides, and burning garbage?
A. algae
B. dioxins
C. mercury
D. pathogens
3. Which of the following does water pollution affect: surface water, groundwater, or ocean water?
A. Pollution affects surface water and ocean water only
B. Pollution affects groundwater and ocean water only
C. Pollution affects surface water, groundwater, and ocean water.
D. Pollution affects surface water and groundwater only.