RESERVOIRS: PROS AND CONS
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Social and water problems are one of the greatest challenges facing humanity today. The total amount of water on Earth is measured by a huge number – 1386 million km3 but, unfortunately, only 2.5% of it is fresh water which is necessary for human life on Earth. River waters used for various needs account for only 0.0002% of the total. On most rivers in the world, more than 60%, and on a number of rivers in arid zones, over 90% of the annual runoff occurs during the flood period, i.e. only 2-3 months. Economic activities cause pollution of rivers and lakes - their water quality deteriorates causing adverse effects to aquatic life.
2019 ◽
Vol 8
(2)
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pp. 167-182
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2019 ◽
Vol 15
(3)
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pp. 82-93
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2020 ◽
Vol 11
(4)
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pp. 6663-6667
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