Answer:
Root nodules is the correct answer of this question.
Explanation:
Root nodules and nitrogen is absorbed by soil which is then absorbed by plants roots
Nitrogen is a central component of living organisms ' bodies. All proteins contain nitrogen atoms, and \text{DNA}DNA start text, D, N, A, end text.
Root nodules are located at plant roots, mainly legumes, which form a symbiosis of nitrogen-fixing bacteria.
Plants take a nitrogen compounds through root nodules.
