AnswersWhite Environmental Science April 8th - May 1stTest

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1
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How is an ecological footprint determined?

A
An ecological footprint is determined by measuring the average amount of land and water that a person in a region uses.
B
An ecological footprint is determined by measuring carbon dioxide emissions for a given region.
C
An ecological footprint is determined by measuring the rate of water use.
D
An ecological footprint is determined by measuring the amount of waste generated in a given region.
2
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Renewable resources can be used without worry about consequences to the environment.

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

best

F
Fossil fuels are cheaper than alternative forms of energy.
F
Fossil fuel reserves will never be depleted.
F
Fossil fuels are easily renewed.
F
Fossil fuel use does not affect the environment.
5

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
6

most

m
myofibrillar proteins in muscle
g
glucose molecules in starch
f
fat molecules surrounding organs
c
cellulose molecules in plant cell walls
7

Freshwater is used principally as drinking water.

A
T
B
F
8

Which describes a way in which phosphorus may enter into the phosphorus cycle?

E
Earthquakes release phosphorus.
P
Phosphorus is carried in the rain that was evaporated from lakes.
H
Human use of fertilizers release phosphorus into the groundwater.
P
Phosphorus is transpired from the leaves of plants.
9

best

P
Plants fix carbon and release oxygen, and animals release carbon and use oxygen.
A
Animals fix carbon and release oxygen, and plants release carbon and use oxygen.
A
Animals fix carbon through respiration, and plants fix carbon through photosynthesis.
P
Plants decompose fixing carbon, and animals decompose releasing carbon.
10

How is the world population projected to change in the next few decades?

A
It is projected to level off.
B
It is projected to decrease steadily.
C
It is projected to increase steadily.
D
It is projected to double within 5 years.
11

Decreasing the use of pesticides and herbicides can help agricultural sustainability.

T
T
F
F
12

How can failing to conserve water contribute to greater water contamination?

A
Overirrigating fields causes an increase in pollution that results from runoff.
B
Natural water filters are depleted by the overuse of water.
C
Sewage systems are more likely to fail due to greater demand, causing higher chances of water contamination.
D
All of the above
13

Conserving water can save money while protecting the environment.

A
T
B
F
14

Why are carbon dioxide concentrations expected to increase?

A
Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase.
B
Carbon dioxide concentrations are expected to increase, because of an increase in agriculture.
C
Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use.
D
All of the above
15

The EPA regulates the dumping of _______ in oceans as outlined by the Ocean Dumping Act.

A
industrial waste
B
sewage sludge
C
medical waste
D
all of the above
16

What would happen if there were no condensation stage in the water cycle?

A
Water could not convert from a gas to a liquid.
B
Water could not convert from a liquid to a gas.
C
Water could not convert from transpiration to evaporation.
D
Water could not convert from precipitation to evaporation.
17

Which of the following might occur if people fail to conserve water?

A
increased sewage system failures
B
increased numbers of natural pollution filters
C
increased water supply
D
increased wildlife habitats
18

The water reclamation process is used to remove solids and impurities, but does not return water to a potable state.

A
T
B
F
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.

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