Forces Shaping the Earth: Waves

The video explains how waves impact shorelines, causing erosion and shaping landscapes. It covers beach erosion, the formation of sea stacks and caves, and how sediment deposition forms beaches. The type of sand on a beach depends on the rock it originated from, such as volcanic or granite. The video also discusses the formation of sand bars and spits.

Explain the process by which beaches are formed from eroded particles.

What is the origin of the black sand found on Icelandic beaches?