Alluvial fans are built by slowing streams and stream branches depositing sediments along the edge of the current. They grow in width as the streams and branches meander. Slowing streams meander because they also deposit sediments in their channels, raising the level of the water, causing sediments at the stream edges to collapse.

 Water flows down from the mountains and cuts into the ground, as these channels get bigger, more water from rain finds its way into them, as the land begins to flatten out, all the water begins to collect into one of the larger areas, meanders are caused when rocks to the side of others are easier to cut through so the water takes that direction.

 Deserts may be caused by rain shadows, when mountain ranges prevent clouds from reaching inland. As air from the ocean moves over the mountains, it cools down and moisture condenses, causing precipitation on the windward side. However, by the time the air reaches the lee of the mountains, it is dry because it has lost most of its moisture, meaning no precipitation to encourage plant growth - hence, a desert.

Swamps form because the water table is close to the surface preventing the water from penetrating the ground and escaping. The area has to be level, so that the water doesn't run off.

The ground is made up of sine sand, dirt or clay and water is unable to drain because of the excess of it.

As water flows from a river into the ocean, the water velocity slows dramatically, causing the sand, silt, and clay suspended in the river to precipitate out, with larger particles precipitating faster than smaller ones. This creates a fan-shaped area of deposition.

 Very Rich soil ideal for farming

Longshore drift is responsible for the creation of some barrier islands. Longshore drift carries sediment parallel to the shore. A sand spit will form if sediment supply is sufficient. The sand spit will increase in length with time and continued deposition of sediments from longshore drift. Large storm events may breach the spit and create and new tidal inlet in the sand spit which may cause the sand spit to break away from the mainland.

Sedimentary Rock such as Shale