Ice wedging is mechanical weathering caused by water flowing into cracks and freezing which expands the water. The ice crack grows larger and larger as the water freezes which expands the water and...
Because ice doesn't change the chemical make-up of a rock. It can however, when liquid, get into a crack in the rock and then freeze. When water freezes, it expands by about 9%. If you've ever had a...
The difference is what the cause or material is. For example: Take two events of raining, one of them is acid rain. Acid rain would seep into limestone or rock, causing it to break into pieces....
Physical weathering is from rocks hitting other rocks causing them to erode etcetera, so its like football. when you hit someone, they might break their bones. Or you can drink soda and destroy your...