AnswersFL-2001340-Environmental Science Sem 2Milestones and Turning Points

Milestones and Turning Points — Cumulative exam Answers

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1
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Which of the following best explains why air pollution that was once blamed for global cooling is now considered responsible for global warming?

A
Pollution began reflecting sunlight and heat rather than absorbing it.
B
Evidence of global warming became overwhelming.
C
Scientists mistakenly thought pollution reflected sunlight and heat rather than absorbed it.
D
Congress required scientists to assign a cause to global climate change.
2
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The sustainable use of rainforest resources is exemplified by _______.

A
lumber harvesting
B
ranching
C
harvesting nuts
D
none of the above
3

Why do many fishermen support efforts to protect and restore mangrove forests?

A
Most fishermen are environmentalists.
B
Many fish breed in mangrove forests.
C
They lay their nets in mangrove forests.
D
Mangrove forests provide valuable hardwoods.
4

Which of the following is not a source of air pollution related to human activities?

A
gasoline
B
garbage
C
forest fires
D
radon
5

The scientific community disagrees about _______.

A
the rate of global climate change
B
the occurrence of global warming
C
the need for action
D
all of the above
6

Genetic factors are more important than environmental factors in determining an individual’s personal health risks.

A
T
B
F
7

Energy efficiency strategies are based on the assumption that consumers will be willing to pay more in exchange for reduced energy use.

A
T
B
F
8

How has technology benefited energy production?

A
It has provided for the use of alternate energy sources that have reduced impact on the environment.
B
It has allowed for the use of energy sources that are renewable.
C
It has allowed for the improvement of existing methods of producing energy.
D
All of the above
9

Bottom trawling is considered destructive because _______.

A
it destroys sea floor habitats
B
it depletes fish populations
C
it shatters deep-sea coral
D
all of the above
10

What is an advantage to alternative energy technology?

A
Using alternative energy technology increases the demand for fossil fuels.
B
Most alternative energy technologies use nonrenewable resources.
C
Alternative energy technology can reduce the environmental impact of burning fossil fuels.
D
There is no advantage to using an alternative energy technology.
11

The following is a chemical reaction for _______ with ozone.

Question illustration
A
chlorofluorocarbons
B
halons
C
UV radiation
D
none of the above
12

Which of the following statements about urban growth is true?

A
The rate of urban growth in the world is decreasing.
B
Urban sprawl is less environmentally damaging than upward growth.
C
Upward growth is less environmentally damaging than urban sprawl.
D
More people are moving away from cities than in previous years.
13

The ozone layer helps sustain life by absorbing a large amount of incoming UV radiation.

A
T
B
F
14

Exposure to pesticides or industrial chemicals _______.

A
always has immediate and apparent side effects
B
decreases the risk of developing genetically influenced diseases
C
increases the risk of developing genetically influenced diseases
D
has no effect on the risk of contracting genetically influenced diseases
15

Soil generation and soil conservation are equally effective agricultural strategies.

A
T
B
F
16

Which of the following will not contribute to resource conservation?

A
using solar power
B
recycling glass
C
using nuclear power
D
using biofuels
17

When is the carbon stored in plants released?

A
during cellular respiration
B
during photosynthesis
C
when they die
D
none of the above
18

Global climate change will have no impact to life on the Earth.

A
T
B
F
19

Which of the following is a negative consequence of scientific advancements on society?

A
increased life expectancy
B
increased pollution
C
new energy resources
D
all of the above
20

Which of the following best explains the importance of studying the ocean carbon cycle?

A
The oceans have a significant impact on the levels of atmospheric gases.
B
It is a new field of ocean science.
C
The ocean releases one quarter of the carbon dioxide in the atmosphere.
D
All of the above

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