Ideally pure water without impurities freezes not at 0 degrees, but at a lower temperature, down to -42 degrees.
Sea water is a very nutritious substance. In 1 cu. cm of such water contains 1.5 g of protein and other substances. Scientists estimate that the Atlantic Ocean alone has a nutritional value of 20,000 harvests a year all over the land.
The cause of dehydration can be not only physical activity, but also overeating.
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