Water Policy — Unit test Answers

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1
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Which of the following is least likely to have difficulties with economic access to potable water?

A
Zimbabwe
B
Australia
C
India
D
None of the above
2
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Where is light penetration in a river or stream likely to be lowest?

A
the source
B
the mouth
C
the middle portion
D
none of the above
3

A heat source could be considered a source of pollution..

A
T
B
F
4

The defining characteristic of potable water is that it _______.

A
is used as tap water
B
can be used for washing and irrigation
C
can be used and consumed without risk
D
is delivered through pipes
5

The use of buffer strips can help reduce human impacts on waterways.

A
T
B
F
6

Which of the following does not contribute to water pollution?

A
forestry
B
industry
C
agriculture
D
none of the above
7

Aquifers are _______.

A
located below the water table
B
important sources of freshwater
C
located in the saturated zone
D
all of the above
8

Groundwater overdraft occurs when _______.

A
the location of the water table changes due to season
B
aquifers become polluted
C
the rate of use exceeds the rate of replenishment
D
trees are planted
9

Which of the following is not an effect of erosion on lakes?

A
water leakage
B
wearing away of sides
C
increased water levels
D
basin filling with sediment
10

Littoral zones are more likely to contain vegetation than riparian zones.

A
T
B
F
11

Changing your toilet can reduce water pollution because _______.

A
the sewage is partially treated in the toilet before entering the sewer system
B
chemicals added by new toilets neutralize the pathogens in the water
C
more efficient plumbing uses more water and creates larger volumes of waste
D
more efficient plumbing uses less water and creates smaller volumes of waste
12

Which of the following is a way in which water resources are consumed?

A
drinking
B
industry
C
business
D
all of the above
13

Which of the following processes requires separate plumbing?

A
water reclamation
B
desalination
C
greywater use
D
none of the above
14

The main difference between stream pools and ponds is that stream pools _______.

A
have an observable current
B
are located inland
C
have no access to rivers or streams
D
are usually larger than ponds
15

Surface water standards for recreation are determined by the Clean Water Act.

A
T
B
F

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