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 human activity is correctly paired with the greenhouse gas that it increases?

A
rice cultivation and water vapor
B
landfilling and carbon dioxide
C
deforestation and methane
D
sewage treatment and nitrous oxide
2
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Which term refers to the loss of fertile soil from drying out?

A
erosion
B
desertification
C
depletion
D
overuse
3

Which mineral resource is used to make batteries?

A
graphite
B
gypsum
C
talc
D
clay
4

Which resource is sometimes unpredictable in terms of energy production?

A
coal
B
wood
C
gasoline
D
natural gas
5

Why is urbanization contributing to pollution?

A
People in urban areas strip the soil of nutrients and make it difficult to grow crops.
B
People in urban areas consume more energy, food, and water.
C
People in urban areas remove minerals and metals from the ground, which increases erosion.
D
People in urban areas log forests and mine, which causes climate change.
6

Which solution would help local farms if the water level in a reservoir used for irrigation became low?

A
Build chinampas to raise the farmland.
B
Build wind-powered pumps to use groundwater.
C
Use shadufs to dig out the reservoir.
D
Turn farmland into paddies.
7

Which three gases are released into the atmosphere when volcanoes erupt?

A
radon, water vapor, carbon monoxide
B
radon, helium, nitrogen
C
nitrogen, water vapor, carbon dioxide
D
carbon dioxide, carbon monoxide, radon
8

Which best explains the effect of reforestation on land?

A
It allows crops to grow in wide steps along slopes.
B
It turns land slowly into desert.
C
It turns habitable land uninhabitable.
D
It restores trees to areas where they once grew.
9

A restaurant advertises that it is environmentally friendly. It describes the solar panels it uses to generate electricity and the locally grown produce it serves. All the meals it offers are prepared over an open wood fire. Food is served on recycled copper plates, and drinks are served in recycled aluminum cups.Which correctly lists three renewable resources used by the restaurant?

A
aluminum, copper, produce
B
copper, produce, sunlight
C
produce, sunlight, wood
D
sunlight, wood, aluminum
10

Which sustainable practice is paired correctly with its impact on the environment?

A
Using bamboo results in an increased use of forest trees.
B
Practicing contour plowing results in a need for more land.
C
Setting irrigation systems to run longer results in a reduction of water use.
D
Building more wind farms results in a reduction of fossil fuel use.
11

Not all countries have adopted air quality regulations as America has.What impact on human health would these countries experience if they adopt air quality regulations similar to the Americas?

A
The amount of exposure to outdoor and indoor air pollution would remain unchanged.
B
The number of premature deaths related to ultrafine particulate exposure would increase.
C
People would experience a decrease in negative health effects associated with air pollution.
D
Effects from impaired breathing would only decrease for those exposed to outdoor air pollution.
12

Which step of desalination must be done before water is condensed and collected?

A
Water is heated until it evaporates.
B
Water is frozen, so it becomes ice.
C
Water is transported from one area to another area that has little water.
D
Water is collected and salt is allowed to settle at the bottom.
13

What farming method is used in dry or desert areas?

A
chinampas
B
drip irrigation
C
wind-powered pumps
D
aqueducts
14

Which statement explains how smog forms?

A
Volcanoes erupt and release ash into the sky.
B
Strong storms pick up soil and mix it with fog.
C
Sunlight and heat react with gases in the atmosphere.
D
Gases move high into the atmosphere and then fall to Earth in rain.
15

Which activity uses water for both recreational and industrial purposes?

A
machinery cooling
B
waterskiing
C
irrigation
D
fishing
16

Why was it important to establish the Clean Air Act?

A
to reduce the need to study the effects of dirty air on human health
B
to determine ways to reduce the number of premature deaths per year
C
to create a regulation that makes any activities that pollute the air illegal
D
to raise the cost of air purification techniques to ensure the efficiency of removing air pollution
17

Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources?

A
reducing air pollution
B
regulating deforestation
C
introducing new farming methods
D
protecting ocean reefs
18

How does the construction of dams positively affect natural resources?

A
by providing water for irrigation and restoring trees to areas where forests once existed
B
by creating reservoirs, preventing flooding, and renewing destroyed ecosystems
C
by preventing flooding, creating reservoirs, and providing water for irrigation
D
by renewing destroyed ecosystems and restoring trees to areas where forest once existed
19

Examine the pictures.

Question illustration
A
coal
B
gasoline
C
oil
D
wind
20

Which federal agency helps foreign governments with international conservation efforts?

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

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