Reducing Air Pollution

A large percentage of emissions resulting in air pollution today comes from _________________.

• motor vehicles
• factories
• farm animals
• ozone depletion

___________________ is a thick, brownish haze formed when certain gases in the air react with sunlight.

• Ozone
• Photochemical smog
• Carbon monoxide
• Methane

In a(n) __________________, a layer of warm air presents rising air from escaping, and traps pollutants near the Earth's surface.

• smog storm
• blackout
• temperature inversion
• forest fire

The key to reducing air pollution is to control ______________.

• methane gas
• overpopulation
• ozone depletion
• emissions

_____________________ is created when chemicals in polluted air react with water vapor to form harmful compounds which can damage plants, waterways, metals and stone. 

• Ozone
• Radon
• Toxic sludge
• Acid rain

CFC's once used in many household products contributed to the creation of a(n) ______________.

• Acid rain
• temperature inversion
• smog cloud
• hole in the ozone layer

____________________ are pollutants released into the air.

• Emissions
• Ozone molecules
• Hazardous wastes
• Acid rains

The ____________________ protects people from the effects of too much ultraviolet radiation.

• ozone layer
• smog layer
• cloud cover
• temperature inversion

Some substances that cause _______________ air pollution, such as dust and pet hair, bother only those people who are sensitive to them.

• outdoor
• indoor
• semi-hazardous
• eco-friendly

Individuals can reduce air pollution by _______________.

• using less electricity
• using motor vehicles less often
• buying local goods
• all of these