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Air Pollution
Beginning of essay
contamination of the atmosphere by gaseous, liquid, or solid wastes
that can endanger the health of human beings, plants, and animals, or that can damage
materials, reduce visibility, or produce undesirable odors.
Statistics
Every year, more than sixty-six million tons of poisonous gas is emptied ....
Middle of essay ....is the legal basis for air-pollution
control. The Environmental Protection Agency is responsible for enforcing the act.
Internationally, 49 countries agreed in 1985 on a United Nations convention to protect the
ozone layer. This agreement, which was renegotiated in 1990, calls for the phaseout of
certain ozone-destroying chemicals by the year 2000.
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Number of words: 320 |
Approximate pages: 2 |
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