AnswersTX-Environmental Systems-BCASUnit Test

Groundwater Answers

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1
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The location of the water table is subject to change.

A
T
B
F
2
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How is groundwater replenished?

A
precipitation
B
streams
C
rivers
D
all of the above
3

What happens if the use of groundwater exceeds the rate of replenishment?

A
the depth of the water table increases
B
the water table is more likely to be polluted
C
the depth of the water table decreases
D
the water table remains unchanged
4

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

A
increased vegetation
B
unproductive wells
C
polluted groundwater
D
higher water tables
5

The use of wells to obtain drinking water is a modern convenience.

A
T
B
F
6

How did the use of groundwater change from preindustrial times to industrial times?

A
Groundwater use decreased from preindustrial times to industrial times.
B
Groundwater use increased from preindustrial times to industrial times.
C
Groundwater use remained virtually the same from preindustrial to industrial times.
D
Groundwater was not used during preindustrial times.
7

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
8

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

A
T
B
F
9

Which of the following is a way that groundwater depletion affects streams?

A
lower water level
B
loss of vegetation
C
wildlife disruption
D
all of the above
10

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
11

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

A
T
B
F
12

How did the use of groundwater change from preindustrial times to industrial times?

A
Groundwater use decreased from preindustrial times to industrial times.
B
Groundwater use increased from preindustrial times to industrial times.
C
Groundwater use remained virtually the same from preindustrial to industrial times.
D
Groundwater was not used during preindustrial times.
13

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
14

What happens if the use of groundwater exceeds the rate of replenishment?

A
the depth of the water table increases
B
the water table is more likely to be polluted
C
the depth of the water table decreases
D
the water table remains unchanged
15

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
16

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

A
increased vegetation
B
unproductive wells
C
polluted groundwater
D
higher water tables
17

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
18

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
19

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
20

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

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