Question

how can moving water contribute to physical weathering

A. it can cause rocks to bump against each other and
B. it can make rocks expand and contract
C. it can cause the formation of new minerals in rocks
D. it can transport rocs to different locations

Answer 1

The correct answer is:

**A. it can cause rocks to bump against each other.**

Moving water can physically weather rocks by causing them to collide and scrape against one another, leading to the breaking down of the rocks into smaller pieces. This process, known as abrasion, is a key mechanism of physical weathering.

Option B is more related to thermal expansion and contraction rather than the direct effects of moving water. Option C refers to chemical weathering, where new minerals are formed through chemical reactions. Option D is more about geological transport rather than physical weathering itself.