AnswersDRHS GA-GSE Environmental ScienceUnit Test

Unit Test — Unit test Answers

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A strategy to reduce, reuse, and recycle would improve ocean health by _______.

A
removing marine debris from the oceans
B
reducing the amount of garbage available to enter the ocean
C
removing garbage from landfills
D
increasing the rate of plankton growth
2
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It is best to say that efficient plumbing _______.

A
reduces water pollution by using less water
B
reduces water pollution by using cleaner water
C
increases water pollution by using more water
D
reduces water pollution by using dirty water
3

Access to potable water is most heavily limited by _______.

A
money
B
precipitation
C
raw water supplies
D
climate
4

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
5

It is best to say that marine debris _______.

A
is a hazard to marine animals
B
degrading ocean health
C
a pervasive, global pollution problem
D
all of the above
6

Which of the following statements about desalination is true?

A
Desalination is less expensive than water reclamation.
B
Desalination uses large amounts of energy.
C
Desalination is the main process used to provide water for crop irrigation.
D
All of the above
7

Which of the following sources of pollution would be the most difficult to track and regulate?

A
lawn fertilizer runoff
B
a waste treatment plant
C
a factory
D
a nuclear power plant
8

A strategy to reduce, reuse, and recycle would improve ocean health by _______.

A
removing marine debris from the oceans
B
reducing the amount of garbage available to enter the ocean
C
removing garbage from landfills
D
increasing the rate of plankton growth
9

Freshwater is used principally as drinking water.

A
T
B
F
10

Which of the following is not an option for solving the world water crisis?

A
desalination
B
finding new sources of freshwater
C
reducing overconsumption
D
wastewater treatment plants
11

Which of the following statements about desalination is true?

A
Desalination is less expensive than water reclamation.
B
Desalination uses large amounts of energy.
C
Desalination is the main process used to provide water for crop irrigation.
D
All of the above
12

Which of the following is true of salt lakes?

A
The water flowing in to salt lakes comes directly from the ocean.
B
Salt lakes are formed when river bends are cut off.
C
The water flowing in to salt lakes contains minerals.
D
Salt lakes do not experience shrinking due to erosion.
13

Potable water delivery systems are characterized by _______.

A
high infrastructure costs
B
aqueducts
C
glass bottles
D
rivers
14

Which of the following practices could help reduce erosion of water banks?

A
buffer strips
B
natural fertilizers and pesticides
C
decrease in fossil fuel emissions
D
all of the above
15

Which of the following best defines sustainable fishing practices?

A
Harvesting practices that maximize yields and profits.
B
Harvesting practices that maximize the yield per fisherman.
C
Harvesting practices that do not reduce the potential for future harvests.
D
Harvesting practices that reduce the potential for future harvests.
16

Which of the following regulations is the primary law regarding water pollution?

A
The Safe Drinking Water Act
B
The Clean Water Act
C
The Marine Protection, Research, and Sanctuaries Act
D
WaterSense
17

It is best to say that marine debris _______.

A
is a hazard to marine animals
B
degrading ocean health
C
a pervasive, global pollution problem
D
all of the above
18

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
19

Ocean water is sometimes referred to as saline water as it contains significant concentrations of dissolved salts. Please select the best answer from the choices provided

A
T
B
F
20

Which of the following is not a possible consequence of animals ingesting marine debris?

A
injury
B
starvation
C
suffocation
D
malnutrition

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