no definite shape or volume
the mass of air surrounding the Earth
the spatial property of being crowded together
a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances
the meteorological conditions: temperature and wind and clouds and precipitation
the weather in some location averaged over some long period of time
people who study climate
the ratio of reflected to incident light
(medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance
Natural cycles in the Earths position (changes in orbit, axis tilt and precession) that are used to explain climate changes over the last 400,000 yrs.
the solid part of the earth consisting of the crust and outer mantle
the watery layer of the earth's surface
the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
coal or charcol, an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond
an organic compound containing only carbon and hydrogen
water that falls from the atmosphere to the Earth as rain,sleet , or snow, overly eager speed (and possible carelessness)
the organic circulation of carbon from the atmosphere into organisms and back again
the starches and sugars present in foods
warming that results when solar radiation is trapped by the atmosphere
a colorless odorless gas used as a fuel
Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect.
A form of radiation that has a longer wavelength than visible light does and cannot be seen with the naked eye., a form of energy with wavelengths that are longer than red light
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