Ch. 8 TEST Review (ES)

Front

What are the major anthropogenic pollutants with the highest estimated fluxes to the atmosphere?

Back

Carbon dioxide, carbon monoxide, methane, nitrogen oxides, suspended particulate matter. (Note: Nitrogen oxides are not among the highest.)

Front

How do wind currents affect air pollution?

Back

Wind currents send air pollution from one continent to the next.

Front

What has been the trend in aggregate emissions of the 6 common pollutants since the Clean Air Act amendments in 1990?

Back

Aggregate emissions have decreased by about 40% even as GDP and population increased.

Front

What are major sources of methane (CH₄)?

Back

Rice paddies, wetlands, landfills, and gas drilling.

Front

What is a major source of volatile organic compounds (VOCs)?

Back

Incomplete burning of hydrocarbons.

Front

Define anthropogenic emissions.

Back

Emissions of pollutants that are a result of human activities.

Front

What is the Clean Air Act?

Back

A U.S. federal law designed to control air pollution on a national level.

Front

What are volatile organic compounds (VOCs)?

Back

Organic chemicals that have a high vapor pressure at room temperature, contributing to air pollution.

Front

What is the significance of the ozone layer?

Back

The ozone layer protects the Earth from harmful ultraviolet (UV) radiation.

Front

What are nitrogen oxides (NOₓ)?

Back

Gases that are produced from burning fuel at high temperatures, contributing to air pollution.