What type of physical weathering involves regular heating and cooling leading to the rocks expanding and contracting and eventually go through the process that can also be known as onion peeling

This type of chemical weathering process is also known as the cation exchange. The process involves reactions between hydrogen in the soil water or rain, and in certain minerals such as feldspar in rocks like granite

For this particular type of chemical weathering, rain water containing carbon dioxide absorbed from the atmosphere is able to dissolve calcareous (calcium- based) rocks

This type of chemical weathering occurs when rocks are exposed to oxygen in air or water.

It is the chemical addition of oxygen compounds in the rock and it can weaken the structure of the rock

This type of chemical weathering involves minerals being soluble in water, especially if that water is slightly acidic.

This type of weathering involves both physical and chemical weathering. The tree roots anchoring into rocks would be physical weathering and tiny plants extracting iron from rocks would be chemical weathering