Chap 21 Lesson 1 Flashcards
0
Q
Pesticides
A
Products used on crops to control insects and other pests
1
Q
Pollution
A
Dirty or harmful stuff in the Enviroment
2
Q
Acid rain
A
Rain that is far more acidic than normal
3
Q
Smog
A
A yellow brown haze that forms when sunlight and air pollution mix
4
Q
Ozone layer
A
A shield that protects living things from sun radiation
5
Q
Greenhouse effect
A
The trapping of heat by carbon dioxide and other gases
6
Q
Global warming
A
A rise in earths tempatures
7
Q
Landfills
A
Huge pits where waste is dumped and buried
8
Q
Hazardousus waste
A
Human made solid or liquid waste that endangers the humans or the Environment
