Answer
A beach is found along the coast, consisting of loose particles like sand, pebbles, or gravel deposited by waves and currents. It serves as a transition zone between the land and the water. The beach is composed of two main components: the beach face and the berm. The beach face refers to the beach's sloping section directly influenced by waves' daily action. It extends from the water's edge to the point where wave action becomes less significant. Constant erosion and deposition shape the beach face as waves recede onto the shore. On the other hand, the berm is a horizontal or gently sloping ridge of deposited sediment found landward of the beach face. It forms due to wave action during high tides or storms, pushing sediment toward the land. The berm acts as a natural barrier against wave energy and provides a stable area for beachgoers or coastal vegetation. Together, the beach face and berm contribute to the dynamic and ever-changing nature of the beach environment.
Work Step by Step
From text in section 20.1
