5. Changes in temperature and
freezing of the water in the
crack of the rock cause
mechanical weathering
6. CHEMICAL WEATHERING
Some times the Nitrogen and
carbon dioxide in the
atmosphere dissolve in the
rain water. When the rain fall
on the rocks a chemical action
takes place between the
minerals in the rocks and the
rain water cause chemical
weathering.
7. The roots of the trees
penetrate in to the crack of
the rocks and small
creatures makes their
homes in these spices,
these also cause the
breakdown of rocks.
