22-10-2020
Geography

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Why are bacteria such as Rhizobium and cyanobacteria so important in the nitrogen cycle?

A.they return nitrogen gas to the air

B.they fix atmospheric nitrogen gas for the food chain

C.they build proteins in plants

D.they decompose dead plants and animals

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ianna230 ianna230

22-10-2020

Answer:

The first one I have the same question and asked the same answered but I don’t know if it’s right

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