AnswersFL-2001340-Environmental Science BHuman Impact on the Environment

Human Impact on the Environment — Unit test Answers

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1
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Which is the best strategy for addressing polluted air?

A
Reduce the cost of chemicals used in industrial processes.
B
Study the effects of mold exposure on people who suffer from asthma.
C
Encourage people to continue burning fossil fuels as they drive vehicles.
D
Build industrial plants and facilities that release chemicals during processing.
2
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Which action has a positive effect on air resources?

A
using fossil fuels
B
building new homes
C
walking to work or school
D
removing vegetation such as trees
3

Why is sustainable use of natural resources important?

A
to ensure that natural resources are available for future generations
B
to help make daily life simpler by providing what every person needs
C
to encourage scientists to make new and elaborate discoveries
D
to prevent the exchange of resources from one region to another
4

Red wolves are an endangered species in the United States. Which agency is responsible for their protection?

A
National Park Service
B
US Fish and Wildlife Service
C
US Forest Service
D
Bureau of Land Management
5

Which is an issue that governments must consider before passing conservation policies?

A
urbanization implications
B
cost to implement conservation policies
C
desertification implications
D
cost to implement deforestation
6

What happens when the lithosphere interacts with the atmosphere?

A
Gases are released from volcanic eruptions.
B
Carbon dioxide is released during plant respiration.
C
Plants absorb sunlight and minerals during photosynthesis.
D
Oxygen gas is cycled as freshwater supplies are replenished.
7

Which statement describes a disadvantage of using natural gas as an energy source?

A
It is expensive to use.
B
It is hard to stop using.
C
It is a renewable resource.
D
It is scarce in some parts of the world.
8

Which is an example of how water is used inside and around the home?

A
fishing in a lake
B
washing clothes at the laundromat
C
brushing teeth before bed
D
washing a car in an automatic carwash
9

Which could cause topsoil to be lost?

A
wind and water erosion
B
lack of use
C
compaction
D
desertification
10

Which is a cause of desertification?

A
farming
B
creating reservoirs
C
overgrazing
D
driving motor vehicles
11

Which statement accurately describes one role of water on Earth?

A
Water in plants and animals transports nutrients into cells.
B
Water reflects sunlight that hits the oceans.
C
Water builds up rock and soil.
D
Water holds heat by trapping it within the equator.
12

Which statement describes one way that wind energy is different from energy from fossil fuels?

A
Wind energy reliability can be inconsistent.
B
Wind energy produces larger quantities of energy.
C
Wind energy can be reproduced quickly.
D
Wind energy produces more pollution.
13

Which correctly lists the three land uses that the Bureau of Land Management was originally created to manage?

A
mining, recreation, wildlife refuges
B
recreation, developing oil and gas, battlefields
C
grazing, mining, developing oil and gas
D
developing oil and gas, battlefields, wildlife refuges
14

Natural resources are classified as renewable and nonrenewable. What is the difference between the two?

A
whether or not the resource exists in nature
B
whether or not the resource can be replaced
C
whether or not the resource dwindles in supply
D
whether or not the resource is useful to humans
15

Which action destroys topsoil?

A
mowing land
B
adding nutrients to soil
C
plowing land without replanting
D
sowing seeds in land

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