Geography ยท Environmental Studies

Geomorphic Processes

2,085 Questions

Geomorphic processes shape the Earth surface through physical mechanisms like weathering, erosion, and deposition. This topic covers soil formation, glacial movement, and coastal landform development. It forms a core component of physical geography in major competitive examinations.

Soil erosion controlGlacial movementCoastal landformsSedimentary rock formationWeathering processes

Geomorphic Processes Questions

Multiple choice

What is the term for the process by which marine sediments are transformed into sedimentary rocks?

  1. Lithification

  2. Diagenesis

  3. Compaction

  4. Cementation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lithification is the process by which marine sediments are transformed into sedimentary rocks through a combination of compaction, cementation, and other physical and chemical processes.

Multiple choice

What is the term for the process by which marine sediments are transported and deposited by ocean currents?

  1. Sedimentation

  2. Erosion

  3. Weathering

  4. Turbidity currents
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Turbidity currents are powerful underwater currents that transport and deposit marine sediments, often forming submarine canyons and fans.

Multiple choice

What is the term for the process by which marine sediments are sorted and deposited according to their size and density?

  1. Sedimentation

  2. Erosion

  3. Weathering

  4. Sorting
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sorting is the process by which marine sediments are sorted and deposited according to their size and density, typically resulting in the formation of distinct layers.

Multiple choice

Which type of cave is formed by the erosion of coastal cliffs by waves?

  1. Lava tube

  2. Sea cave

  3. Solutional cave

  4. Glacial cave
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sea caves are formed when waves erode coastal cliffs, creating hollows and tunnels.

Multiple choice

What type of cave is formed by the erosion of sandstone by wind?

  1. Sinkhole cave

  2. Talus cave

  3. Eolian cave

  4. Fracture cave
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Eolian caves are formed when wind erodes sandstone, creating hollows and tunnels.

Multiple choice

What is the term used to describe the amount of suspended solids in water?

  1. Turbidity

  2. Sedimentation

  3. Erosion

  4. Siltation

  5. Deposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Turbidity is a measure of the amount of suspended solids in water, which can affect its clarity and quality.

Multiple choice

What is the term for the process by which soil is eroded by wind or water?

  1. Weathering

  2. Erosion

  3. Deposition

  4. Compaction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Erosion is the process by which soil is eroded by wind or water. This can lead to the loss of valuable topsoil and can have negative impacts on agriculture and the environment.

Multiple choice

What is the process by which rocks are broken down into smaller pieces?

  1. Weathering

  2. Erosion

  3. Deposition

  4. Compaction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Weathering is the process by which rocks are broken down into smaller pieces. This can be caused by physical processes, such as temperature changes and freezing and thawing, or by chemical processes, such as the action of acids and bases.

Multiple choice

What is the process by which sediments are deposited and accumulate?

  1. Weathering

  2. Erosion

  3. Deposition

  4. Compaction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Deposition is the process by which sediments are deposited and accumulate. This can occur when the velocity of a fluid (such as water or wind) decreases, causing the suspended sediments to settle out.

Multiple choice

What is the primary geomorphological impact of dam construction?

  1. Erosion

  2. Deposition

  3. Landslides

  4. Flooding
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dams trap sediment, leading to the deposition of sediment upstream of the dam and the erosion of sediment downstream.

Multiple choice

What is the term for the process by which sediment is deposited upstream of a dam?

  1. Aggradation

  2. Degradation

  3. Erosion

  4. Sedimentation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aggradation is the process by which sediment is deposited upstream of a dam, raising the riverbed elevation.

Multiple choice

What is the term for the process by which sediment is eroded downstream of a dam?

  1. Aggradation

  2. Degradation

  3. Erosion

  4. Sedimentation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Degradation is the process by which sediment is eroded downstream of a dam, lowering the riverbed elevation.

Multiple choice

What is the term for the process by which a river channel adjusts to a change in sediment load?

  1. Aggradation

  2. Degradation

  3. Erosion

  4. Sedimentation
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Channel adjustment is the process by which a river channel adjusts to a change in sediment load. This can involve changes in the channel width, depth, and slope.

Multiple choice

How do dams affect the geomorphic diversity of a river?

  1. They increase the geomorphic diversity.

  2. They decrease the geomorphic diversity.

  3. They have no effect on the geomorphic diversity.

  4. They change the composition of the geomorphic diversity.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dams can reduce the geomorphic diversity of a river by creating a more uniform channel morphology and reducing the sediment supply to downstream reaches.

Multiple choice

What are some of the geomorphological impacts of irrigation projects?

  1. Erosion

  2. Deposition

  3. Salinization

  4. Waterlogging
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Irrigation projects can cause erosion, deposition, salinization, and waterlogging.