This is the first 1,000 characters of 497 words (1.99 pages) in the essay titled GreenHouse Effect
The glass windows of a greenhouse let in sunlight. The sunlight warms up objects inside the greenhouse. These objects then give off heat. The glass of the greenhouse, however, does not let out the heat. If the greenhouse lacks ventilation, all the heat stays locked inside and the temperature rises. This greenhouse effect also causes the inside of an automobile to become hot if its windows remain closed on a sunny day.
The Earth and its atmosphere are like a giant greenhouse. Like the glass windows of a greenhouse, the atmosphere is nearly transparent to shortwave and visible solar radiation. Part of the energy absorbed by the Earth is radiated to the atmosphere as long-wave infrared radiation. Because it contains carbon dioxide and water vapor, which absorb much of the long-wave radiation before partially reradiating it back to the surface, the atmosphere is not completely transparent to this long-wave radiation. This causes the Earth and its...
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