The process of formation of soil is termed as “PEDOGENESIS”
Soil is formed due to to weathering of rocks.
weathering-Erosion, wear and tear
weathering of the rock can occur either physically or chemically

WEATHERING OF ROCKS
- PHYSICALLY
- impact of grinding of water,air and ice
- Splitting action of ice
- Gravitational force
- Plants and Animals
CHEMICALLY
- Oxidation
- Reduction
- Carbonation
- Hydration
- Leaching action by H2O and organic acid