Plants cannot absorb atmospheric nitrogen gas directly. In what form do they absorb it?

Type: MCQ • Marks: 1

A. As urea powder directly

B. As nitrogen dioxide

C. As nitrates and ammonium ions

D. As free nitrogen gas

Explanation

Soil bacteria convert atmospheric N2 into soluble forms like nitrates (NO3-) and ammonium (NH4+), which roots can absorb.

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