Air Quality

Contamination of air by harmful substances including gases and smoke is

• acid precipitation

• air pollution

• smog

• inversion

Precipitation that has a lower pH than that of normal rainwater is

• precipitation

• acid precipitaton

• base precipitation

• pH precipitation

The mix of both solid and liquid particles in the air is

• smog

• acid precipitation

• particulate matter

• factory smoke

Air pollution that forms from the interaction between chemicals in the air and sunlight is

• photochemical smog

• acid precipitation

• particulate matter

• pollution

Smoke from a factory stack would be an example of

• point source pollution

• non point source pollution

Acid precipitation can harm organisms and damage structures made of stone. What is a source of acid precipitation?

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OFF

________ can be observed as haze or a brown tint in the atmosphere.

The _____ gives the government the power to set air quality standards.

• Environmental Protection Act

• Clean Air Act

• Air Quality Act

• Endangered Species Act

Pollution emissions have declined, even though the population is increasing. Explain what humans are doing to decrease pollution emissions.

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Name one source of indoor air pollution.

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