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Rivers flowing simultaneously through the territory of two or even three states often become the subject of disputes and disagreements between neighbors. In the modern world, when the problem of the lack of fresh water is becoming more and more urgent, many countries are ready to spend large sums of money in order to capture on their territory those precious cubic meters of water that the river carries downstream to the territory of the neighboring state. I must say that since ancient times, people have built structures designed to stop the flow of water, which is then used in agriculture. However, dams built earlier differ from modern structures in their much more modest dimensions. Today's structures are true marvels of engineering and technology, including large concrete walls with locks and gates built across the rivers. At the same time, the higher the dam, the greater the reserve capacity of the dam. #Pandora TV#