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
Which of the following is NOT a common type of sediment deposit?
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Sandbar
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Delta
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Meander
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Floodplain
C
Correct answer
Explanation
Meander is a sinuous pattern of a river, not a type of sediment deposit.
The term 'aggradation' in sediment transport refers to:
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The process of sediment deposition
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The process of sediment erosion
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The process of sediment transportation
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The process of sediment sorting
A
Correct answer
Explanation
Aggradation in sediment transport refers to the process of sediment deposition, leading to the buildup of sediment on the bed.
The term 'sediment yield' refers to:
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The total amount of sediment transported by a river over a given period
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The rate at which sediment is transported by a river
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The maximum size of sediment that can be transported by a river
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The distance over which sediment is transported by a river
A
Correct answer
Explanation
Sediment yield is the total amount of sediment transported by a river over a given period, typically measured in tons per year.
Which of the following is NOT a factor influencing sediment yield?
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Climate
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Geology
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Land use
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Vegetation
D
Correct answer
Explanation
Vegetation is not a direct factor influencing sediment yield, although it can indirectly affect sediment transport through its influence on runoff and erosion.
The term 'sediment budget' refers to:
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The balance between sediment inputs and outputs in a river system
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The total amount of sediment stored in a river system
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The rate at which sediment is transported through a river system
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The distance over which sediment is transported in a river system
A
Correct answer
Explanation
Sediment budget refers to the balance between sediment inputs (e.g., from erosion) and outputs (e.g., through deposition) in a river system.
Which of the following is NOT a common sediment management strategy?
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Dredging
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Sedimentation basins
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Erosion control measures
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River channelization
D
Correct answer
Explanation
River channelization is not a common sediment management strategy, as it can lead to increased erosion and sediment transport.
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The gradual loss of land along the coast due to the action of waves, tides, and currents
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The process by which sediment is deposited on the coast
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The movement of sediment from one part of the coast to another
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The rise in sea level due to climate change
A
Correct answer
Explanation
Coastal erosion is the gradual loss of land along the coast due to the action of waves, tides, and currents. This can be caused by a variety of factors, including rising sea levels, storms, and human activities.
What are the main causes of coastal erosion?
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Rising sea levels
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Storms
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Human activities
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All of the above
D
Correct answer
Explanation
Coastal erosion can be caused by a variety of factors, including rising sea levels, storms, and human activities. Rising sea levels are caused by the melting of glaciers and ice sheets, and by the thermal expansion of ocean water. Storms can cause coastal erosion by generating large waves and storm surges. Human activities can also contribute to coastal erosion, such as by building seawalls and jetties, which can disrupt the natural flow of sediment.
Which of the following is a type of structural measure that can be used to control soil erosion?
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Retaining walls
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Check dams
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Gabions
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All of the above
D
Correct answer
Explanation
Retaining walls, check dams, and gabions are all types of structural measures that can be used to control soil erosion by physically preventing the movement of soil.
Which of the following is a type of mechanical measure that can be used to control soil erosion?
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Contour plowing
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Strip cropping
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Terracing
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All of the above
D
Correct answer
Explanation
Contour plowing, strip cropping, and terracing are all types of mechanical measures that can be used to control soil erosion by physically preventing the movement of soil.
Which of the following is a type of vegetative measure that can be used to control soil erosion?
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Planting trees
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Planting shrubs
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Planting grass
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All of the above
D
Correct answer
Explanation
Planting trees, shrubs, and grass are all types of vegetative measures that can be used to control soil erosion by providing a protective cover that reduces the impact of raindrops and wind, and by holding the soil in place with their roots.
Which of the following is a type of structural measure that can be used to control soil erosion?
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Retaining walls
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Check dams
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Gabions
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All of the above
D
Correct answer
Explanation
Retaining walls, check dams, and gabions are all types of structural measures that can be used to control soil erosion by physically preventing the movement of soil.
What is the process by which coral reefs are formed?
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Coral Bleaching
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Coral Spawning
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Coral Growth
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Coral Erosion
C
Correct answer
Explanation
Coral reefs are formed through the growth and accumulation of calcium carbonate produced by tiny marine organisms called coral polyps.
Which soil conservation technique involves the construction of earthen embankments along contours to prevent soil erosion?
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Contour Bunding
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Strip Cropping
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Mulching
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Terracing
A
Correct answer
Explanation
Contour Bunding is a soil conservation technique that involves constructing earthen embankments along contours to prevent soil erosion.
What is the process by which coral reefs are formed?
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Erosion
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Sedimentation
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Coral Growth
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Volcanic Activity
C
Correct answer
Explanation
Coral reefs are formed through the growth and accumulation of coral colonies, which are made up of tiny marine animals called coral polyps.