SOIL

What is Soil ?

1. Soil is not dirt

2. Soil is not inert

3. Soil is in a dynamic state

4. Soil is a three-dimensional body

5. Soil is a three-phase system

What is SOIL

Definition:

“A dynamic natural body on the surface of the earth in which plants

grow, composed of mineral & organic materials and living form“

Soil is a product of the interaction of water, air, and living organisms with

exposed rocks or sediments at the Earth‘s surface

Soil contains :

45% inorganic materials

5% organic materials

25% air

25% water