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While heat and drought reduce the groundwater in many places, water consumption continues to rise. Is it possible to reverse this global trend by using water more sparingly in households, industry, and agriculture? "Water is an important but not an infinite resource," warns Dorothea Mergel, a project engineer at Hamburg's water company, adding ...
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Вода и лёд — это одно и то же химическое вещество (молекула \\(H_{2}O\\)), но в разных агрегатных состояниях. Лёд — это вода в твердой фазе, которая образуется при температуре \\(0\\,^{\\circ}\\text{C}\\) и ниже.Химический состав: И вода, и лед состоят из атомов водорода и кислорода, образующих молекулу \\(H_{2}O\\).Структура: При замерзании молекулы выстраиваются в жесткую кристаллическую решетку. Из-за этой структуры лед становится менее плотным, чем жидкая вода, поэтому он не тонет, а плавает
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