Air Pollution

Many of the smoggiest cities are in which state?

• California
• New York
• Texas
• Florida

Slash-and-burn is done primarily

• for energy
• to clear land for agriculture
• to clear land for construction
• none of these

How many pollutants does the Clean Air Act of 1970 regulate?

• 6
• 89
• 189
• 289

Pollutants may collect

• beside mountain ranges
• in inversions
• when there is little wind
• all of these.

Smog that forms from a reaction with sunlight is known as

• photographic smog
• photochemical smog
• photosynthesized smog
• photogenic smog

Before the Industrial Revolution there was very little air pollution that wasn't natural.

• True
• False

Burning fossil fuels releases carbon dioxide into the atmosphere.

• True
• False

About 150 million tons of pollutants enter into the atmosphere every year.

• True
• False

The Clean Air Act regulates carbon dioxide.

• True
• False

Ozone in the lower atmosphere protects life from UV radiation.

• True
• False