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The archaebacteria occurring in marshes,...

The archaebacteria occurring in marshes, swamps, rumens of catties, gobar gas plants are
1. methanogens
2. ammonifying bacteria
3. thermoacidophiles
4. denitrifying bacteria

A

oxidize ammonia to nitrates

B

convert free nitrogen to nitrogenous compounds

C

convert proteins to free nitrogen

D

reduce nitrates to free nitrogen.

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