Difference between revisions of "Greenhouse"
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(New page: A ''greenhouse'' is an plant nursery enclosed in glass to keep in warm air. The heat comes from sunlight's infrared spectrum, which is used in the heat lamps that keep McDonald's [[fre...) |
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Revision as of 21:41, March 21, 2009
A greenhouse is an plant nursery enclosed in glass to keep in warm air. The heat comes from sunlight's infrared spectrum, which is used in the heat lamps that keep McDonald's french fries warm. Instead of blowing away, the air remains inside.