Surface Processes Study Guide

Weathering is

• It is the process of rock formation.

• It is the breakdown of rocks and minerals by natural processes.

• It is the process of erosion by water only.

• It is not related to geology.

The two types of weathering are

• mechanical weathering and chemical weathering.

• Mechanical weathering and biological weathering.

• Erosional weathering and depositional weathering.

• No weathering occurs.

Examples of mechanical weathering include:

• Frost wedging

• Oxidation

• Chemical dissolution

• Acid rain

Potholes form as a result of water infiltration and freeze-thaw cycles.

• Because of water infiltration and freeze-thaw cycles

• Due to poor construction quality

• Owing to natural weathering of rocks

• Due to overuse of the road

Chemical weathering examples include...

• Oxidation and hydrolysis

• Freeze-thaw, abrasion, and exfoliation

• Mechanical fracturing and physical weathering

• Biological weathering and thermal expansion

Water impacts weathering, erosion, and deposition by

• Water has no effect on these processes.

• Water increases these processes by breaking down rock, transporting sediment, and depositing it.

• Water only causes weathering without affecting erosion or deposition.

• Water solely contributes to the deposition process.

Erosion is

• the process that moves sediments around on the earth's surface

• The planting of vegetation to prevent land degradation.

• The process of building new landforms.

• The natural preservation of minerals.

The types of erosion we talked about are:

• glacial erosion

• Water erosion and wind erosion

• Wind erosion and glacial erosion

• None of the above

Deposition is

• the process that sediments deposit out of something

• It is the process of sediment erosion.

• It is the process of sediment transport.

• It is the process of weathering.

Identify the features of a young river

• Steep, fast, narrow and V-shaped valleys

• Gentle gradient, slow flow, and wide floodplains

• Low gradient, sediment deposition, and meandering channels

• Flat terrain, low energy, and oxbow lakes