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Biology, 22.10.2020 22:01 bellam302

Why are bacteria such as Rhizobium and cyanobacteria so important in the nitrogen cycle?
A. They return nitrogen gas to air
B. They fix atmospheric nitrogen gas for the food chain
C. They decompose dead plants and animals
D. They build protein in plants

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