Why plants cannot absorb molecular nitrogen from the atmosphere?

Nitrogen is toxic

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Nitrogen is highly reactive

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Nitrogen is highly stable

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Abundance in the atmosphere inhibits absorption

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Solution

The correct option is C Nitrogen is highly stable
Plants require nitrogen but cannot absorb it directly because the strong triple bond between the N atoms in N2 molecule makes it stable and inert.
Nitrogen fixation is the process wherein N2 is converted into
soluble form by nitrogen fixing bacteria.

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