Chemical weathering is prevalent in hot and humid areas. Give reason.

Chemical weathering is a process where minerals in a rock may be converted into clays, oxidized or simply dissolved. It is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. Chemical weathering generally takes place in hot and humid areas where there is a lot of water. This is because water is important to many of the chemical reactions that can take place. 

Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions.