Which of the following adds/add nitrogen to the soil? 1.

| M: +2.00/-0.67

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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1. ????? ?????? ?????? ?? ????????

2. ???? ?????? ????? ?????

3. ??????? ?? ??????

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[Ecology and Environment 2011-16 New Without Errors,UPSC IAS Prelims 2013]

A 1 only

1 ही

B 2 and 3 only

2 और 3 ही

C 1 and 3 only

केवल 1 और 3

D 1, 2 and 3

1, 2 और 3

Carnivorous animals feed on herbivorous animals that live on plants. When animal...

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