Key learning points

1. There are four types of erosion: abrasion, hydraulic action, attrition and solution.
2. There are four types of transportation: traction, solution, suspension and saltation.
3. Deposition occurs when the river has lost its energy and can no longer carry its load.

Keywords

• Erosion - the process by which Earth’s surface, e.g. rock or soil, is worn away and transported from its ordinal state and original location

• Transportation - where rivers move sand, mud and rocks

• Deposition - when sand, mud and rocks are dropped by the river

Common misconception