Weathering

Weathering is the wear of the rocks and mountains caused by many things,there are two most inportant divisions of weathering, on is physical weathering and the other chemical weathering. The Physical occurs in areas of dare rocks, but it doesnt change the change the chemical composition. The other type of weathering is the chemical , that its the brakdown of rocks, solis and minerals ,this occurs in very warm and moist climates, one example is the limestone solution.

Here are all the examples of weathering:

The freze-thaw: its in cold climates,its made whenwater enter in the cracks during the warmer day and freezes during the cooler nigth.

Biological: Tree roots penetrate the rocks 

Limestone solution: its caused by carbonuic acid ,bu tits a weak solution

Exfoliation: warm climates. The non-vegetated rock is repeadly heated and cooled, so it peel-off.