Human Impact on Cycles We, as humans, have an effect on everyone and everything around us including the four main cycles of the Earth; water cycle, nitrogen cycle, carbon cycle, and the phosphorus cycle. The water cycle is the circulation of the earth's water, in which water evaporates from the surface into the atmosphere, where it condenses and returns back to the Earth’s surface as rain or snow. Water is an essential necessity in every living, biotic thing. Humans have an impact of the water cycle is many different ways…
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