What are the 4 types of erosion processes?

What are the 4 types of erosion processes?

Rainfall produces four types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion.

What are the three processes of river erosion?

Erosion

• Hydraulic action – the force of the river against the banks can cause air to be trapped in cracks and crevices.
• Abrasion – rocks carried along by the river wear down the river bed and banks.
• Attrition – rocks being carried by the river smash together and break into smaller, smoother and rounder particles.

What are the 4 types of river deposition?

These are:

• suspension / suspended load;
• solution / solution load;
• saltation; and.
• traction.

What are the process of erosion?

Erosional processes along coastlines include: (1) the direct effects of hydraulic action, wedging, and cavitation by waves; (2) abrasion (corrasion), using sand, gravel, and larger rock fragments as tools; (3) attrition of the rock particles themselves during this abrasive action; (4) salt weathering or fretting; (5) …

What is river erosion answer?

Erosion is the process that wears away the river bed and banks. Erosion also breaks up the rocks that are carried by the river. There are four types of erosion: Hydraulic action – This is the sheer power of the water as it smashes against the river banks.

What are the four processes of river transportation?

Transport

• Solution – minerals are dissolved in the water and carried along in solution.
• Suspension – fine light material is carried along in the water.
• Saltation – small pebbles and stones are bounced along the river bed.
• Traction – large boulders and rocks are rolled along the river bed.

What are the processes of deposition?

Deposition is the laying down of sediment carried by wind, flowing water, the sea or ice. Sediment can be transported as pebbles, sand and mud, or as salts dissolved in water. Salts may later be deposited by organic activity (e.g. as sea shells) or by evaporation.

What is the process of erosion and deposition?

Erosion is when materials, like soil or rocks, are moved by wind or water. All these materials are called sediments. Deposition is when those sediments are deposited, or dropped off, in a different location. These processes change the way the surface of the earth looks over time.

What causes erosion in rivers?

wave action generated by wind or boat wash; • excessive or inappropriate sand and gravel extraction • intense rainfall events (e.g. cyclones). The various mechanisms of stream bank erosion generally fall into two main groups, bank scour and mass failure.

What are the 4 most common agents of erosion?

Water, wind, ice, and waves are the agents of erosion that wear away at the surface of the Earth.

What happens river erosion?

Streams erode and transport sediment. As the loose sediments are moved along the bottom of the river channel, small bedforms (formations of sediment on the bottom of the stream bed) can develop, such as ripples and sand dunes.

What are the four means of transportation state with example?

The means of transport are classified into – roadways, railways, waterways, airways. Roadways means the moving vehicles are commute through roads for example car, bus, motorbike, etc, Railways means the vehicle is moving only by track like Metrorail, trains, etc.