Nitrogen fixation means:

manufacture of nitrogen

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liquefication of nitrogen

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conversion of nitrogen into nitric acid

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conversion of atmospheric nitrogen into useful compounds

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mixing of nitrogen with other elements

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Solution

The correct option is D conversion of atmospheric nitrogen into useful compounds
Nitrogen fixation is a process in which nitrogen(N₂) in the atmosphere is converted into ammonia (NH₃) and useful compounds. Atmospheric nitrogen or molecular dinitrogen (N₂) is relatively inert: it does not easily react with other chemicals to form new compounds.
So the answer is D.

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Similar questions

Q. In nitrogen fixation, nitrogen is converted into

Question 7
Choose the correct statement with respect to nitrogen fixation:

Statement 1: Nitrogen fixation process is involved in converting nitrogen gas into nitrogenous compounds.

Statement 2: Root nodules of the non-leguminous plants help in the process of nitrogen fixation.

Rhizobium helps in fixation of atmospheric nitrogen into ammonia.

Q. Which of the following processes releases nitrogen back into the atmosphere?
I. Nitrification
II. Denitrification
Ill. Nitrogen fixation

Nitrogen fixation is a process in which nitrogen ( $N_{2}$ ) in the atmosphere is converted into ammonium ${N H_{4}}^{+}$ or nitrogen dioxide ( $N O_{2}$ ). Which of the following is/are responsible for this?

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