Which of the following adds/add nitrogen to the soil? 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer using the codes given below.

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CollectorBabu · Accepted Answer

Correct Answer: 1 and 3 only. Nitrogen can be added to soil from animal by-products, plant and mineral sources. Statement 1 is correct as adding nitrogen to soil be done by excretion of urea by animals since urea serves an important role in metabolism of nitrogen containing compounds by animals. Statement 2 is incorrect as Burning coal leads to cause smog, acid rain and toxic air pollution and not nitrogen to soil. Nitrogen in soil contains leaves, plants and manure, so statement 3 is correct. As statement 1 and 3 are correct, so correct option is C.

Which of the following adds/add nitrogen to the soil? 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer using the codes given below.

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