Greenhouse is a building with a glass roof
and sides enclosing a space in which temperature and humidity cane controlled
for cultivating tender or out-of-season plans. Greenhouse became popular in
Europe. The favorite crops were pineapples, peaches and grapes; they were grown
in green-houses.
Greenhouse effect is defined as the
trapping by the earth’s atmosphere of heat energy radiated from the sun. the
effect is named after the solar warming observed in greenhouses, although the
later effect is in fact more directly the result of trapping warmed air below
the ceiling of glass.
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| GREENHOUSE EFFECTS |
All substances absorb energy in the forms
of radiation convert fit to heat, and then reradiate the energy. Dark and matt
colors absorb higher proportions than lighter shiny colors, such as the ice
herein gases, do not absorb very my such radiations (except in the far
ultraviolet), unlike the know gases, ozone, nitrous oxide, wear vapors and carbon dioxide, which have a
significant effect on atmospheric absorption.
The amount of radiation absorbed and
reradiated varies with the nature of the substance and the wavelength of
addition. As for the atmosphere, it is nearly transparent for the short,
visible wavelengths of the electromagnetic spectrum carbon dioxide, ozone,
methane, water vapors and nitrous oxide in the air, however, absorb the solar
radiation.
