Chapter 11

Where does Point Source Pollution (PS) come from?

• The source cannot be traced

• The source can be inferred, but not confirmed with 100% accuracy

• The exact source is known (ex: a pipe)

• None of these

What is NPS pollution?

• The source cannot be traced

• The source can be inferred, but not confirmed with 100% accuracy

• The exact source is known (ex: a pipe)

• None of these

What is Nonpoint Source (NPS) pollution closely associated with?

• Specific drain pipes

• Unknown farmland

• Specific underground storage tank

• Stormwater and runoff

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NPS pollutants are washed off land during what kind of events?

• Blizzard

• High pressure system

• High precipitation

• Tornado

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Where does stormwater runoff ultimately end up?

• Lakes

• Streams

• Lakes and streams

• None of these

Can eutrophication happen naturally? If so, how?

• No

• Sometimes, but it is incredibly rare

• Yes, when dead organisms and wastes decay

• Yes, when there are too much rain

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How do humans contribute to eutrophication?

• NPS Pollution from runoff and sewage

• Humans cannot contribute to eutrophication

• Only animals can contribute to eutrophication

• By throwing litter out of our cars

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How can eutrophication be harmful to an aquatic system?

• It is not harmful, more nutrients are good for an aquatic system

• It is harmful because more nutrients cause plants to die

• It is not harmful, nutrients allow more plants to grow, creating more food for fish

• It is harmful because more nutrients cause more plants to grow, depleting the amount of dissolved oxygen in the water

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What is one simple and effective way to prevent or remove eutrophic lakes?

• Add more fertilizers to your lawn

• Reduce the amount of fertilizer you put on your lawn

• Remove plan buffer zones

• None of the above

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Which is an example of a source of groundwater pollution? Check all that apply.

• Sealed landfill

• Throwing litter out of your car

• Septic tanks

• Burning fossil fuels

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