* Wave Energy and Erosion/Deposition: Waves carry sediment. High-energy waves have more power to erode and transport sediment, while low-energy waves have less power. This means they are more likely to deposit sediment rather than erode it.

* Types of Waves:

* Constructive waves: These are low-energy waves with a long wavelength and a gentle slope. They deposit more sediment than they erode, leading to beach growth.

* Destructive waves: These are high-energy waves with a short wavelength and a steep slope. They erode more sediment than they deposit, leading to beach erosion.

* Factors Contributing to Low-Energy Waves:

* Calm weather: Calm conditions lead to smaller waves with less energy.

* Shallow water: As waves approach the shore and enter shallower water, they slow down and lose energy.

* Protected coastlines: Coasts sheltered from strong winds and storms experience less wave energy.

Examples of Coastal Deposition:

* Beaches: Beaches are formed by the deposition of sand and other sediments carried by waves.

* Spits: These are narrow stretches of land extending out from the coastline, formed by the deposition of sediment carried by longshore currents.

* Tombolos: These are sand bars connecting an island or rock to the mainland, also formed by wave deposition.

* Barrier islands: These are long, narrow islands parallel to the coastline, formed by the accumulation of sand and sediment.

In Summary: While all waves can play a role in coastal processes, low-energy waves are the primary agents of coastal deposition. Their gentle nature allows them to deposit sediment, shaping the coastline and creating various coastal landforms.