UPSC CSE Prelims 2015 Q11 — Environment & Ecology PYQ with Answer

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 groundwater can occur.

Select the correct answer

using the code given below.