Land, Air, & Water Resources Review

The process of reclaiming products such as metal, glass, paper, and plastic and reusing them to create new products is called

•   mining.
•  incineration.
• composting.
•   recycling.

To create less waste in the first place is to

• reduce.
•  incinerate.
•  reuse.
•  recycle.

One group of gases that is responsible for destroying ozone in the ozone layer is

•   CFCs.
• car exhaust fumes.
• carbon monoxide and carbon dioxide.
•  nitrogen oxides and sulfur oxides.

Most of the Earth's water (about 97 percent) is

• salt water in the oceans.
• freshwater in lakes and rivers.
• in the form of snow or ice.
• in the clouds.

Many types of hazardous waste can be disposed of

• in an open dump.
• in a carefully designed landfill.
• in a sanitary landfill.
• down the drain.

Most water pollution is the result of

• human activities.
• drought.
• volcanic eruptions.
• storms.

The ozone layer protects people from which of the following?

• carbon monoxide poisoning
• too much ultraviolet radiation
• the effects of radon
• surfing

Precipitation that is more acidic than normal because of air pollution is called

• smog.
• acid rain.
• ozone.
• emissions.

Which indoor air pollutant is a colorless, odorless gas that forms when wood, coal, oil, or gas are incompletely burned?

• carbon monoxide
• radon
• ozone
• smog

What is the thick, brownish haze formed when certain gases react in sunlight?

• carbon monoxide
• Photochemical smog
• acid rain
• radon