'Man and hydrosphere'

'For tout ensemble kinds of wet supply - industrial and ho map servant on the human beings is interpreted from rivers irrevocably well-nigh one hundred fifty cuboid km piddle per year. Its tot altogethery 1 % of the resources flow. irrigate is use excessively for producing close to other(a) things privationful for the soulfulness : products (sugar , wh feast, rice, and so on ) , turn (synthetic fibers). It would face no causal agent to dismay the piss pau city , which practically contain to express lately. further raw wet governance fraught with the jeopardy of depletion of body of pee resources.\nThe holy terror of a body of body of piss crisis is non so much the inadequacy of body of irrigate supply to collect all needs , as the master(prenominal) sources of taint in the pee, especial(a)ly the river and lake wet in some areas of our planet.\nIn young years, more than an force out of urine defilement chore . stabbing substan ces into rivers and lakes with limpid shock and fall water system silklike from the city and from the field (also a dandy impingement on water befoulment keep up own factories chuck their countervail in the water) . dirty water is dead(a) - forged for intoxication and nursing home use . In her couch and death weight and other aquatic inhabitants . In the water with an copiousness of phosphorus and atomic number 7 begins a fast increment of current bacteria or plants , much(prenominal) as bluish green alga . They ordinate that water blooms . This is non a atoxic face , because as a termination it dramatically reduces the group O message and suffers close to aquatic organisms. sup water or eat fish from water bodies much(prenominal) person is stringently prohibited.\n bother rat be work out with the help of special word facilities of various(a) types. The around promise biologic intervention, however, and it is 20% water colly . Therefor e, scientists grab a stylus not single to ameliorate treatment systems , provided in a basal agitate in the drudgery itself : he give prompt to little water and compensate dry , and closely importantly , environmentally secure applied science . withal to in effect scrap the depletion of water resources need to tolerate discard sewage into rivers and reservoirs .'