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The process of nitrogen-fixation by bacteria does not take place in the presence of

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in Class 9 by kratos

The process of nitrogen-fixation by bacteria does not take place in the presence of

(a) molecular form of hydrogen
(b) elemental form of oxygen
(c) water
(d) elemental form of nitrogen

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+6 votes
by kratos
 
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(b) elemental form of oxygen

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