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What can be the impact of excessive/ inappropriate use of nitrogenous fertilizers in agriculture? [CSAT 2015-1]

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