Name the disease that occurs in people who work in stone quarries?

The colour of red soil is due to the presence of:

Watermelon grows well in:

Clay is good for the cultivation of:

The study of soil is known as:

The main inorganic component of soil is:

Which soil is ideal for the growth of plants?

A type of soil:

Which organism is called foes of farmer?

The factor responsible for the formation of soil?