chapter 21 vocab

includes any dirty  or harmful substance in the environment

• Pollution

• Pesticides

• Acid Rain

are products used on crops to control insects and other pests

• Pesticides

• Acid Rain

• Smog

rain that is far more acidic than normal

• Acid Rain

• Smog

• Ozone Layer

a yellow-brown haze that forms when sunlight reacts with air pollution

• Smog

• Ozone Layer

• Greenhouse Effect

protects living things from ultraviolet (uv) radiation

• Ozone Layer

• Greenhouse Effect

• Global Warming

the trapping of heat by carbon dioxide and other gases in the air

• Greenhouse Effect

• Global Warming

• Landfills

a rise in the earth’s temperatures

• Global Warming

• Landfills

• Hazardous Wastes

huge pits where wastes are dumped and buried

• Landfills

• Hazardous Wastes

• Environmental Protection Agency (EPA)

are human-made liquid or solid wastes that many endanger human health or the environment

• Hazardous Wastes

• Environmental Protection Agency (EPA)

• Biodegradable

is the governmental agency that is committed to protecting the environment 

• Environmental Protection Agency (EPA)

• Biodegradable

• Nonrenewable Resources