Title: Default for Pollution Quiz
Course: Great Lakes Ecology

Q: What Ohio river caught on fire in 1969?
- Cuyahoga River
- Ohio River
- Mississippi River
- Missouri River
A: Cuyahoga River

Q: What decade was the Great Lakes Water Quality and Clean Water Acts signed?
A: 1970 (± 70) / 1970 (± 70)

Q: What is the change in the chemical, physical, and biological health of a waterway due to human activity?
A: Water pollution

Q: Which are ways human have affected waterways?
There are more than one answer.
- Sewage disposal
- Heavy metals
- Run off
- Pesticides
- Air pollution
- Overdevelopment
A: Sewage disposal; Heavy metals; Run off; Pesticides; Air pollution; Overdevelopment

Q: Water can dilute all pollution.
- True
- False
A: False

Q: Sewage treatment plants are an example of what kind of pollution?
A: Point source pollution

Q: Mercury, PCBs, and phosphorous are all pollutants commonly found where?
A: Waterways

Q: Coal-burning energy plants and waste incinerators are 2 major sources of what time of pollution?
A: Atmospheric pollution

Q: Deformities and disease of aquatic organisms are the results of what?
A: Pollution

Q: Substances that remain in the environment for a long time and bioaccumulate are known as what?
A: Persistant Organic Pollutants
Partly right: POPs (75%)

Q: You should consume large amounts of fish from the Great Lakes.
- True
- False
A: False

Q: How much have phosphorous levels dropped in Lake Erie since 1970?
- 80%
- 75%
- 60%
- 100%
A: 80%

Q: Which lake has excessive plant growth and low dissolved oxygen content?
- Oligotrophic lakes
- Eutrophic lakes
A: Eutrophic lakes

Q: Do oligotrophic or eutrophic lakes support more aquatic life?
A: Oligotrophic lakes

Q: Which lake has little plant nutrients and is typically cool with clear water?
- Oligotrophic lakes
- Eutrophic lakes
A: Oligotrophic lakes