Q. What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture?
1. Proliferation of nitrogen-fixing microorganisms in soil can occur. 2. Increase in the acidity of soil can take place 3. Leaching of nitrate to the ground-water can occur.
Select the correct answer using the code given below.

[A] 1 and 3 only

[B] 2 only

[C] 2 and 3 only

[D] 1, 2 and 3

Answer: C