Activity 4 I. Identify the factors of physical weathering shown in each picture. 1. ______ 2.______ 3.______
Answer (1)
The factors of physical weathering in the pictures could include frost wedging (or freeze-thaw action), abrasion (from wind or water carrying sediments), and pressure release (exfoliation). Frost wedging occurs when water seeps into cracks, freezes, expands, and breaks the rock apart. Abrasion is caused by wind or water carrying sediments that grind against rocks, wearing them down. Pressure release, also known as exfoliation, happens when rocks deep underground are exposed at the surface, causing them to expand and fracture.
