rianmckenzie8274 rianmckenzie8274

13-05-2020
Biology

contestada

A scientist is studying a substance that cycled through ecosystems. Which substance might the scientist be studying?

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jhernandez962 jhernandez962

13-05-2020

There can be various answers to that question but they might be carbon, nitrogen, oxygen, phosphate, and sulfur , used in all ecosystems

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