Which of these make its home in the soil ?

What is the substance that makes the soil more fertile called ?

What is the wearing away of soil by wind, rain and running water called ?

Which of the following soil has a grey or brown colour ?

What is the layer just beneath the top soil called ?

What is the substance made of dead leaves and plants called ?

Loamy soil is very rich and good for the growth of which crop ?

Which of these has very large grains which do not hold any water between them ?

How many kinds of soil are there ?

What is the kind of soil that has equal quantities of sand and clay called ?