1. The first question asks to identify the natural event described by the term "erosion." The options are: A. erosion B. a volcano C. a hurricane D. an earthquake Since the question is about erosion, the correct answer is A. 2. The second question asks about the soil property most important in determining how water moves through soil. The options are: A. color B. layers C. size of particles D. earthworms present The movement of water through soil depends primarily on the size of the soil particles because larger particles create larger spaces for water to flow through, while smaller particles hold water tightly. Therefore, the correct answer is C. Final answers: - Question 1: A (erosion) - Question 2: C (size of particles)