The landscape is being continuously worn away by two processes - Weathering and erosion. Weathering is the breaking up to the rocks on the earth's surface. It happens due to the physical, chemical and biological action by temperature, rainwater living organisms etc. That cause cracks and chip off the rock surface into smaller fragments. Erosion is the wearing away of the lansdscape by different agents like water, wind and ice. These agents transport the weathered material away from parent rock and deposit it to other places causing different landforms.