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hydrogen ['haıdrıdʒən] vodorod водород

concentration (activity) of hydrogen ions in water solution or fluid phase of soil. A. is specified by pH (a negative log of the hydrogen ions' activity).

increasing of acidity (with abatement of hydrogen ionization value) in natural components (rock, soil); it is caused by use of acidic mineral fertilizers and deposition o

kim. vodorod; hydrogen dioxide (peroxide) vodorod peroksidi; hydrogen nitrate azot kislotasi хим. водоро́д; hydrogen dioxide (peroxide) пе́рекись водоро́да; hydrogen nitr

organisms producing organic matters from inorganic joints with the help of solar energy (phototrophes or heliotrophes) or energy released from chemical reactions of acidi

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