Which of the following is an example of Physical Weathering? (explain)
a
Acid Rain
b
Hydrolosis
c
Salt Wedging
d
Oxidation
c. Salt Wedging
Salt wedging is an example of physical weathering because it involves the physical breaking down of rock or sediment without any chemical changes. Salt wedging occurs when water containing salt seeps into cracks and crevices in rocks. As the water evaporates, the salt crystals are left behind and begin to grow, putting pressure on the surrounding rock and eventually causing it to crack. This process is purely mechanical and does not involve any chemical reactions.