the mass of air surrounding the Earth
the removal of trees
lower the grade of something
reducing something to an insufficient amount
interfere in someone else's activity
communities of living species and their physical environments
gases released into the air, especially by cars and factories
erosion by chemical action
the gases in the atmosphere that trap and radiate heat; water vapor, co2, chlorofluorocarbons (CFC's), methane, nitrous oxide
places where animals or plants naturally live and grow
fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
Burning of waste
having industries for the machine production of goods
make less severe or harsh
a colorless gas (O3) soluble in alkalis and cold water
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
capable of being renewed
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