Changing Waterways — Unit test Answers

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1
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The EPA regulates the dumping of _______ in oceans as outlined by the Ocean Dumping Act.

A
industrial waste
B
sewage sludge
C
medical waste
D
all of the above
2
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Conserving water can save money while protecting the environment.

A
T
B
F
3

Which of the following might occur if people fail to conserve water?

A
increased sewage system failures
B
increased numbers of natural pollution filters
C
increased water supply
D
increased wildlife habitats
4

The Working for Water program helps conserve water by employing individuals to remove invasive plants.

A
T
B
F
5

What is a key difference between greywater use and water reclamation?

A
If collected separately, greywater can be used for certain applications without treatment.
B
Greywater use is more costly than water reclamation.
C
Water from reclamation is always safe for drinking, while greywater is not.
D
Greywater has been mixed with sewage, while reclaimed water is derived from clean water.
6

Desalination has no known negative impacts on the environment.

A
T
B
F
7

Error

Answer not available
8

The water reclamation process is used to remove solids and impurities, but does not return water to a potable state.

A
T
B
F
9

Why is water conservation important?

A
It is important in desert areas because water is scarce, but not in areas with high levels of precipitation.
B
Water conservation is important because people are currently consuming freshwater resources faster than they can be replenished.
C
Water conservation is important because only 10% of Earth’s water sources are usable.
D
All of the above are true.
10

Which of the following is a program rather than a law regulating water quality?

A
The Safe Drinking Water Act
B
The Clean Water Act
C
WaterSense
D
The Marine Protection, Research, and Sanctuaries Act

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