Question 3497 Deck General

The correct answer is D) sand. Scouring refers to the erosion of soil or other material by the action of water. Sand is particularly susceptible to scouring because its individual grains are loose and easily displaced by the flow of water. Other soil types like mud, coral, or clay have a higher cohesion between their particles, making them more resistant to scouring. The other answer choices are incorrect because mud, coral, and clay are not as prone to scouring as sand. Mud and clay have a higher clay content, which binds the particles together, while coral is a harder material that is less easily eroded by water flow.