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The pollution of natural waters

The pollution of natural waters

Water is one of our key natural resources; we must protect it vigorously.

02:11

География

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water pollution, environmental pollution, contamination, pollutant, water surface, seawater, өзен, surface water, underground water, environmental damage, environmental problems, self-purification, chemical, waste, hazardous waste, waste formation, eutrophication, toxic substance, water protection, елді мекен, environment, environmental protection, ауыл шаруашылығы, өнеркәсіп, society, табиғат, география

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