AnswersOK-Environmental Science - Sem A -CA- 36431AUnit Test

Unit Test — Unit test Answers

0 verified answers2 views
1
Free Preview

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
Free Preview

Freshwater is used principally as drinking water.

A
T
B
F
3

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
4

Potable water delivery systems are characterized by _______.

A
high infrastructure costs
B
aqueducts
C
glass bottles
D
rivers
5

Which of the following best describes the effects of water pollution on aquatic ecosystems?

A
It can result in fish kills and restrictions on human consumption.
B
It can change the physiology of fish.
C
It can cause long-term alterations of aquatic ecosystems.
D
All of the above
6

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
7

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
8

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
9

What is the greatest use of groundwater?

A
drinking
B
industry
C
agriculture
D
recreation
10

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.
11

Human activity on land can have a profound influence on marine ecosystems.

A
T
B
F
12

Where is the water table located?

A
10 ft below the surface
B
below the saturated zone
C
at the top of the saturated zone
D
all of the above
13

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
14

Access to potable water is most heavily limited by _______.

A
money
B
precipitation
C
raw water supplies
D
climate
15

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
16

Increased awareness of water contamination can help reduce its effects.

A
T
B
F
17

The location of the water table is subject to change.

A
T
B
F
18

Which of the following best explains why humans need constant supplies of fresh water?

A
Humans need a constant supply of water to provide them with essential vitamins.
B
Humans need a constant supply of water to maintain proper hygiene.
C
Constant supplies of freshwater are needed because body water is continually being lost.
D
Constant supplies of freshwater are not actually necessary for survival.
19

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
20

Which of the following statements regarding water conservation is not true?

A
Only about 1% of Earth’s water supply is usable for human consumption.
B
Over half of the states predict water shortages by 2013.
C
While environmentally beneficial, water conservation is a costly endeavor.
D
Failure to conserve water will lead to more water contamination.

Did you find these answers helpful?

More from this Course

Instruction
9 verified answers

Instruction

Quiz
1 verified answers

Plate Tectonics

AL
4 verified answers

Plate Tectonics