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GuDViN [60]
3 years ago
12

Why are bacteria required in the nitrogen cycle?

Biology
1 answer:
jarptica [38.1K]3 years ago
8 0
Answer:
            The correct option is d ( <span>nitrogen needs to be fixed before it is used by plants).

Reason:
             Nitrogen fixing bacteria play a key role in nitrogen cycle, because they may a connection for the flow of nitrogen between atmosphere and the soil. Air contain 78% N, but it can not be taken by living organisms in its free form. Nitrogen fixing bacteria live in the roots of plants capture this free N and convert it into nitrogenous compounds which are then easily taken by plants. </span>
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Step 1:

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