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

What is the animal waste used to make the soil fertile called ?

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

How many kinds of soil are there ?

Which of these make its home in the soil ?

What is the upper layer of the soil called ?

Which soil is used for making toys and other articles ?

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

What is the protecting of soil from soil erosion called ?

What is the layer just beneath the top soil called ?