the 5th largest continent on Earth; also the highest, driest, and coldest continent
1907 - 1964 American scientist who wrote SILENT SPRING, warning of the harmful effects of pesticides on the environment
a gradual increase in the temperature of Earth's surface
a gas produced by the burning of gasoline
the proccess by which carbon dioxide in Earth's atmosphere traps heat from the sun, raising the temperature of Earth's surface
a chemical that is used to kill insects or other pests
a person who tries to solve environmental problems
an animal or plant that is in danger of dying completely
the clearing of land, which causes lost of forests and less fertile land
the drying up of land along a desert
the process of making the environment dirty
Environmantal Protection Agency
a US agency that watches the env
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