1. wetlands Bogs, marshes, and swamps Why they’re important:
Provide habitats
Purify water
Act as flood control

2. The surface of which of the following rivers caught fire in 1969?
A. Thames River, England
B. Charles River, Massachusetts
C. Cuyahoga River, Ohio
D. Mississippi River, Mississippi

3. Marine organisms need at least _______ ppm of dissolved oxygen in order to survive.
B. 3
C. 4
D. 5

4. Why do people live in floodplains?
A. Easy Access to Water
B. Fertile Soils
C. Transportation
D. All of the above

5. According to the world health organization, how much coliform bacteria can you have in drinking water?
A. 0
B. 10 mg/l
C. 25 mg/l
D. 50 mg/l

6. What law was passed with the intention of preventing pollutants from being discharged into public water ways?
A. Clean water act
B. Safe drinking water act
C. Fifra
D. Superfund

7. What is the name of an area where salt water freshwater mix that have a high NPP?
A. The open ocean
B. The abyssal zone
C. The headwaters
D. An estuary
E. An ecotone

8. Where is the majority of earth’s water stored?
A. The ocean
B. The atmosphere
C. Groundwater
D. Lakes, streams, and rivers
E. Glaciers