Chapter 21 Vocab

Question 0

Biodegradable

Answer 0

Broken down easily in the environment

Question 1

Environmental protection agency

Answer 1

Governmental agency that is committed to protecting the environment

Question 2

Non renewable resources

Answer 2

Substances that cannot be replaced once they are gone

Question 3

Conservation

Answer 3

Saving of resources

Question 4

Precycling

Answer 4

Reducing waste before it occurs

Question 5

Pollution

Answer 5

Any dirty or harmful substances

Question 6

Pesticides

Answer 6

Products used on crops to get away bugs

Question 7

Acid rain

Answer 7

Rain that is more acidic than normal

Question 8

Smog

Answer 8

Yellow haze that forms when sunlight reacts with air pollution

Question 9

Ozone layer

Answer 9

Shield that protects living things from UV radiation

Question 10

Green house effect

Answer 10

Trapping of heat by carbon dioxide and other gases

Question 11

Global warming

Answer 11

Rise in earths temperatures

Question 12

Landfills

Answer 12

Huge pits where wasters are buried and dumped

Question 13

Hazardous wastes

Answer 13

Human made liquid or solid wastes that endanger human health or the environment