Changing Waterways Answers

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1
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The Karez well system _______.

A
was the first known use of wells
B
was a postindustrial system
C
transported groundwater from a distance
D
all of the above
2
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The use of wells to obtain drinking water is a modern convenience.

A
T
B
F
3

In the preindustrial era, settlements were more likely to be near sources of surface water than in the industrial era.

A
T
B
F
4

Why has groundwater use increased?

A
the total amount of freshwater has decreased
B
more of the available freshwater is stored in glaciers and icecaps
C
governments have banned the use of freshwater in rivers and springs
D
the demand for freshwater has increased due to population growth
5

Which of the following can lead to groundwater shortages?

A
pollution
B
use exceeding the rate of replenishment
C
lack of precipitation
D
all of the above
6

How does groundwater become polluted?

A
Pollutants mixed with water pass through permeable layers above the aquifer.
B
Factories dump their waste directly into aquifers.
C
Refuse infiltrates the water table when garbage is dumped.
D
All of the above
7

What is a possible long-term consequence of groundwater overdraft?

A
increased vegetation
B
unproductive wells
C
polluted groundwater
D
higher water tables
8

The location of the water table is subject to change.

A
T
B
F
9

Why is groundwater an important source of freshwater storage?

A
It constitutes approximately 30% of Earth’s freshwater.
B
It is the only viable source of freshwater in some areas.
C
It is available in conditions of drought.
D
All of the above
10

Which of the following factors does not influence the level of the water table?

A
pumping
B
time of year
C
pollution
D
none of the above

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