Why type of physical weathering is caused by the expansion of water?

Freeze and Thaw effect

Explanation:

Physical weathering refers to the breaking down of rocks by agents such as water, wind, and ice. Water plays an important role in the weathering of rocks. The rocks often contain crack in them. During precipitation, the water is trapped in these fractures. The water freezes and starts expanding. This increases the volume of water by 9%. As a result of which it exerts pressure causing the rock to break. This type of physical weathering process is known as the freeze and thaw effect.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.