Global Warming
Beginning of paper
, aside from pollution is one of scientists biggest
concerns. is caused by the Greenhouse effect. There are 4
steps in the Greenhouse effect. 1-Sunlight radiates from the sun, through
space, to EarthÆs atmosphere. 2- The sunlight enters the atmosphere and
hits Earth. Some of it turns into heat en ....
Middle of paper
.... factories). These human-induced gases include carbon dioxide,
methane, nitrous oxide, and ozone depleting substances such as CFCs, also
known as Chlorofluorocarbons, hydrofluorocarbons, and perfluorocarbons.
These gases are generated a number of human activities such as fossil fuel
combustion, waste disposal in landfills, the use of a refrigerator,
numerous agricultural and industrial activities, and the cutting down of
numerous forests.
These human practices have already changed the chem ....
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Word count: 774
Page count: 3 (approximately 250 words per page)
