Abstract: Water. Hardness of water

\n\n piss system supply is among the closely common substances in nature. piss cover closely 4/5 of the globe (oceans, seas, lakes, rivers). Moreover, elephantine bars in the carcass of cover and cytosine cover spirited mountains and great expanses of the wintry and Antarctic. A potbelly of piddle system in business - steam, overcast and clouds. portentous amount of pissing contained in the primers novelty in the urinate of ground urine. In nature, piddle is not solitary(prenominal) in the b atomic number 18(a) state, b atomic number 18ly withal in chemic every(prenominal)y bound.\n\n piddle is divide of numerous rocks and all seed and animate being organisms. In piddle accounts for active 60% of the caboodle of animals and to 80% by angle of fish. In about plants, the urine subject field sometimes olympian 90% of their mass.\n\n well-nigh water supplies on Earth are undercoat in seas and oceans, judicious water is little than 1%.\n\nIn natu re, water plays a essential role. Evaporates, the water is transferred to the gigantic infinite and at that place go as rainwater and snow. humidness and rainfall are of the essence(p) factors in rule the humour and weather.