Jharkhand PSC Prelim Exam 15-Dec-2013 Solved Paper

Earthworm are known as farmers best friend. Earthworm play an important role to improve soil fertility. For example earthworm bring up the nutrients from deep in the soil \& deposit them on the soil surface. Hence earthworm helps to incorporate organic matter into the soil. So in which field earth worm number is more soil fertility will be more. So assertion is wrong \& Reason is right.