Most fertile and productive soils in the world have developed under grassland. What could be the reason for this?
1. The rainfall in grasslands is inadequate and hence excessive leaching of minerals is blocked
2. The humus and partially decomposed organic materials expand its capability to retain water
Select the correct statement(s) from the codes given below:

Answer: [C] Both 1 & 2

Grassland soils are highly fertile and contains large amount of exchangeable bases and organic matter. This is because the rainfall in grasslands is inadequate and hence excessive leaching of minerals is blocked. The humus and partially decomposed organic materials expand its capability to retain water by as much as 20% and binds soil particles into clumps, increasing the effectiveness of the soil to make nutrients and water availability to the plants.

This question is a part of GKToday's Integrated IAS General Studies Module