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Because hey return back to their original forms after conversions. They behave like circular processes.

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Q: Why are pathways for water nitrogen carbon etc called cycles?
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Related questions

How are the carbon nitrogen and water cycle similar?

all of the cycles (water, nitrogen, and carbon cycles) are the same because they are all cycles that have to do with the atmosphere.


What are the four nutrient cycles?

carbon, nitrogen, phosphorus cycles.


Are the nitrogen carbon and water cycles bio-geochemical cycles?

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Scientists classify the nitrogen carbon and water cycles as biogeochemical cycles?

It is true that scientists classify the nitrogen, carbon, phosphorus, and water cycles as biogeochemical cycles. This is also referred to as cycling of substances.


What are the three nutrient cycles that play especially prominent roles?

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What are the biogeochemical cycle?

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how how might all the producers being dead in the ecosystem effect the carbon oxygen nitrogen cycles


What are the three cycles that move through the ecosystem?

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