Question

question 3 of 10
what type of physical weathering is caused by the expansion of water?

Explanation:

Physical weathering involves the breakdown of rocks without chemical changes. When water expands (as it freezes, for example), it exerts pressure on the surrounding rock. This process is known as frost wedging. Water seeps into cracks in rocks. When it freezes, it expands (since water expands when it freezes - a property of water). The expansion creates pressure that widens the cracks. Over time, this repeated freezing (expansion) and thawing (contraction when it melts) can break the rock apart.

Answer:

Frost wedging.