Earth Science: The Water Planet, Book H

Section 2: Groundwater Pollution and Overuse

Self-Check Quiz-Eng.

An example of point source pollution is __________.
A)dumping used motor oil into a stream
B)automobile fluids washing off the roads and into a stream
C)fertilizer runoff from farms
D)landfills seeping into groundwater
What makes a sanitary landfill sanitary?
A)people who clean it out periodically
B)only clean trash is allowed in
C)chemical treatments to the trash
D)a lining of plastic or concrete
Which is not a potential source of pollution?
A)road salt
B)underground gas storage
C)road runoff
D)compost heap
How can a poorly designed septic system be dangerous?
A)Sewage and bacteria can run off into groundwater.
B)Raw sewage is dumped directly into streams.
C)The system can dry up the groundwater supply.
D)Sewage and bacteria can leak into the groundwater.
A mine is built near your home. What might be a concern for you?
A)Sewage can seep into the groundwater.
B)Road salt will runoff into groundwater.
C)The mine probably will practice illegal dumping.
D)Mining chemicals can flow into the groundwater.
Which is not a source of agricultural runoff?
A)debris from crops
What is the best method to ensure clean groundwater?
A)Do not pollute it in the first place.
B)Use chemicals to treat polluted groundwater.
C)Filter groundwater.
D)Move the water table.
Which type of pollution source is easiest to eliminate?
A)nonpoint source
B)Both easily are eliminated.
C)point source
D)Neither can be eliminated.
How does bioremediation clean groundwater?
A)Bacteria and fungi consume the pollutants.
B)Pollution is burned away.
C)Animals dig up the polluted sources.
D)Chemicals are introduced to kill all bacteria.
What happens to the water table when a groundwater shortage occurs?
A)It gets lower.
B)It rises.
C)It disappears completely.
D)It goes below the zone of saturation.
How can seawater cause groundwater pollution?
A)Groundwater is salt water.
B)Seawater can absorb groundwater.
C)Seawater is salt water.
D)Seawater lowers the water table.
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