Air Resources Answers

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1
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Why was 1990 an important year regarding air quality?

A
The United States took first steps to keep the air clean.
B
The United States created the Environmental Protection Agency.
C
Modifications and improvements were made to the Clean Air Act.
D
Funding was established under the Clean Air Act to study air pollution.
2
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What was the order of steps taken by the United States to clean the air?

A
enact the Clean Air Act, establish funding to study how to clean the air, create the EPA, and find cost-effective ways to keep the air clean
B
establish funding to study how to clean the air, enact the Clean Air Act, create the EPA, and find cost-effective ways to keep the air clean
C
find cost-effective ways to keep the air clean, establish funding to study how to clean the air, create the EPA, and enact the Clean Air Act
D
create the EPA, enact the Clean Air Act, find cost-effective ways to keep the air clean, and establish funding to study how to clean the air
3

A community takes action to reduce chemical release at an industrial plant located near a town.Why is it important for the community to take action?

A
to limit the potential threat of a buildup from pollutants that affect outside air
B
to reduce the number of premature deaths associated with ultrafine particle exposure
C
to highlight the impact of indoor air pollution exposure on people that reside in the town
D
to address the negative effects of skin cancer that are associated with this chemical release
4

What was the main reason for creating the EPA?

A
enforce the Clean Air Act
B
create new laws to keep the air clean
C
provide funding for air pollution studies
D
study the negative effects of polluted air
6

What is the most effective approach the government can take to keep the air clean?

A
create and enforce regulations that limit fossil fuel burning by industries
B
use funds to understand why smoke and mold are causes of outdoor air pollutants
C
educate people about the threats to outdoor clean air from visible forms of air pollution
D
modify regulations under the Clean Air Act by including expensive options to reduce air pollution
7

Study the image of a plant.

Question illustration
A
oxygen
B
nitrogen
C
water vapor
D
carbon dioxide
8

What happens when the atmosphere interacts with the biosphere?

A
Winds are produced.
B
Groundwater supplies are replenished.
C
Carbon dioxide is cycled during plant respiration.
D
Volcano eruptions influence the cycling of nitrogen.
9

Which factor is a major contributor to outdoor air pollution?

A
radon
B
fossil fuels
C
ultrafine particles
D
carbon monoxide
10

What are one of the ways the atmosphere recycle gases through interactions with the biosphere ?

A
Through the usage of nitrogen and release oxygen into the atmosphere from plants.
B
Though the process photosynthesis
C
Through available sunlight and release oxygen into the atmosphere.
D
The mineral content in the ground that plants rely on and release carbon dioxide into the atmosphere.

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