Fill in the Blank:
The big pieces of rocks that are broken down by wind and water into smaller pieces till we get a fine powder is called _______.
______ is formed when sand mixes with organic matter and minerals.
We need ______ gas to breathe.
The process of soil formation is called ________.
Garden soil that consists of clay, sand, and humus is called _____.
______ soil is usually very good for growing plants.
______ particles are extremely fine.
The layer of the soil made up of fine sand and humus is called the ______.
The removal of the fertile topsoil by the action of wind and water is called ________.
The dark-coloured substance formed from dead remains of plants and animals is called ______.
The process of growing different types of crops on farmland so that the soil has time to recover the minerals that the previous crop has used is called _________.
Protection of soil from erosion is known as _______.