Geography ยท Environmental Studies
Geomorphic Processes
2,120 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
What is the term for a large, flat area of land that is lower than the surrounding terrain?
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Basin
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Playa
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Valley
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Depression
A
Correct answer
Explanation
A basin is a large, flat area of land that is lower than the surrounding terrain.
Which geologic feature is formed by the erosion of rock by water?
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Canyon
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Gorge
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Ravine
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Gulch
A
Correct answer
Explanation
A canyon is a geologic feature formed by the erosion of rock by water.
Which geologic feature is formed by the deposition of sediment by a wave?
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Sandbar
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Spit
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Tombolo
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Barrier island
A
Correct answer
Explanation
A sandbar is a geologic feature formed by the deposition of sediment by a wave.
Which geologic feature is formed by the deposition of sediment by a wind?
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Sand dune
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Loess
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Playa
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Badlands
A
Correct answer
Explanation
A sand dune is a geologic feature formed by the deposition of sediment by a wind.
Which human activity is a major contributor to coastal erosion?
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Beach Nourishment
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Mangrove Restoration
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Seawall Construction
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Sustainable Fishing
C
Correct answer
Explanation
Seawalls, while intended to protect coastal areas from erosion, can disrupt natural sediment transport patterns and exacerbate erosion in adjacent areas.
How does the construction of groynes affect coastal erosion?
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It reduces erosion by trapping sediment.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
B
Correct answer
Explanation
Groynes can disrupt the natural flow of sediment along the coast, leading to increased erosion in downdrift areas.
How does the removal of sand from beaches impact coastal erosion?
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It reduces erosion by lowering the beach profile.
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It increases erosion by disrupting sediment balance.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
B
Correct answer
Explanation
Sand removal disrupts the natural sediment balance of beaches, making them more vulnerable to erosion.
How does the construction of jetties affect coastal erosion?
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It reduces erosion by trapping sediment.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
B
Correct answer
Explanation
Jetties can disrupt the natural flow of sediment along the coast, leading to increased erosion in downdrift areas.
How does the construction of breakwaters affect coastal erosion?
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It reduces erosion by dissipating wave energy.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
A
Correct answer
Explanation
Breakwaters help dissipate wave energy before it reaches the shoreline, reducing erosion.
How does the construction of seawalls affect coastal erosion?
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It reduces erosion by protecting the shoreline.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
B
Correct answer
Explanation
Seawalls can disrupt the natural flow of sediment along the coast, leading to increased erosion in adjacent areas.
How does the construction of offshore breakwaters affect coastal erosion?
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It reduces erosion by dissipating wave energy.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
A
Correct answer
Explanation
Offshore breakwaters help dissipate wave energy before it reaches the shoreline, reducing erosion.
Which human activity can contribute to increased coastal erosion due to the alteration of sediment transport patterns?
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Mangrove Restoration
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Beach Nourishment
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Construction of Groynes and Jetties
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Sustainable Fishing
C
Correct answer
Explanation
The construction of groynes and jetties can alter sediment transport patterns, leading to increased erosion in adjacent areas.
How does the construction of artificial reefs affect coastal erosion?
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It reduces erosion by dissipating wave energy.
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It increases erosion by disrupting sediment transport.
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It has no significant impact on erosion.
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It enhances sediment deposition, leading to beach growth.
A
Correct answer
Explanation
Artificial reefs help dissipate wave energy before it reaches the shoreline, reducing erosion.
What is the process by which dissolved minerals in seawater precipitate and form solid particles?
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Lithification
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Diagenesis
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Hydrogenesis
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Compaction
C
Correct answer
Explanation
Hydrogenesis is the process by which dissolved minerals in seawater precipitate and form solid particles, contributing to the formation of hydrogenous sediments.
What is the process by which sediments are compacted and hardened into solid rock?
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Lithification
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Diagenesis
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Hydrogenesis
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Compaction
A
Correct answer
Explanation
Lithification is the process by which sediments are compacted and hardened into solid rock through the action of pressure, temperature, and chemical reactions.