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A gas, e.g. carbonic acid gas or methane that reflects infrared radiation emitted by the earth, thereby, helping to accumulate heat in atmosphere.

formation in cells of green plants, algae and some micro-organisms of organic matters from carbonic acid and water under operating of a light accompanied by separation of

gaseous outer cover of the Earth and other celestial bodies. At the very earth surface it mainly consists of nitrogen (78,08%), oxygen (20,95%), argon (0,93%), water stea

–a mixture of gases composed in natural conditions at the microbiological decomposition of organic substances (mainly, of vegetation remains). M.g. is inflammable and mai

[Greek hypo — below, under and kapnos — smoke] — a morbid state of an organism (short breath) caused by an abatement of concentration of carbonic acid in blood resulted f

[Greek hyper — above, over and kapnos — smoke] — a morbid state of an organism (sleepiness, narcosis) caused by the heightened concentration of carbonic acid in bloodstre

mixture of gases which are formed during decomposition of wastes (of dung, straw, organic domestic wastes) by cellulose anaerobic organisms with the participation of bact