Tuesday, October 28, 2008

The Greenhouse Effect

1. Greenhouse Effect is when the earth's atmosphere traps solar radiation, caused by the gases that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface.



2. The three most common types of gases are carbon dioxide, water vapor, and methane.



3. They have formed because the earth's temperature has inceased 5 degree.



4. It makes the temoerature hotter on the earth which makes the seasons hotter.

5. The greenhouse effect is good because if it wasn't there, it would be freezing all year.


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