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 process by which rising sea levels cause coastal erosion?
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Wave action
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Tidal currents
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Storm surges
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All of the above
D
Correct answer
Explanation
Rising sea levels can cause coastal erosion through various processes, including wave action, tidal currents, and storm surges. These processes erode coastal landforms, leading to the loss of beaches, cliffs, and other coastal habitats.
What is the term used to describe the construction of structures to protect coastal areas from rising sea levels and coastal erosion?
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Coastal adaptation
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Coastal defense
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Coastal hardening
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Coastal resilience
B
Correct answer
Explanation
Coastal defense refers to the construction of structures, such as seawalls, breakwaters, and levees, to protect coastal areas from rising sea levels and coastal erosion.
What is the term used to describe the process by which coastal areas are gradually submerged by rising sea levels?
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Coastal inundation
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Coastal flooding
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Coastal submergence
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Coastal retreat
A
Correct answer
Explanation
Coastal inundation refers to the process by which coastal areas are gradually submerged by rising sea levels, resulting in the loss of land and infrastructure.
How does contour bunding help to reduce soil erosion?
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By slowing down the flow of water
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By trapping sediment
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By increasing infiltration
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All of the above
D
Correct answer
Explanation
Contour bunding helps to reduce soil erosion by slowing down the flow of water, trapping sediment, and increasing infiltration.
What is the primary agent responsible for riverbank erosion?
C
Correct answer
Explanation
Riverbank erosion is primarily caused by the erosive action of flowing water, which can wear away the soil and sediment along the riverbanks.
Which of the following factors can contribute to increased riverbank erosion?
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Vegetation cover
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Steep riverbanks
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High water velocity
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Stable riverbed
B
Correct answer
Explanation
Steep riverbanks are more susceptible to erosion as they are less able to resist the erosive forces of flowing water.
What is the term used to describe the process of sediment deposition along the banks of a river?
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Erosion
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Sedimentation
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Transportation
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Deposition
B
Correct answer
Explanation
Sedimentation refers to the process by which sediment is deposited along the banks of a river, typically in areas where the water velocity decreases.
What is the term used to describe the sediment that is transported by a river?
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Bedload
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Suspended load
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Dissolved load
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All of the above
D
Correct answer
Explanation
Sediment transported by a river can be classified into three types: bedload, suspended load, and dissolved load.
Which of the following is a measure used to quantify riverbank erosion?
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Bankfull discharge
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Shear stress
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Erosion rate
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Sediment yield
C
Correct answer
Explanation
Erosion rate is a measure used to quantify the amount of soil or sediment that is eroded from a riverbank over a given period of time.
What is the term used to describe the process by which sediment is transported downstream by a river?
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Erosion
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Transportation
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Deposition
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Sedimentation
B
Correct answer
Explanation
Transportation refers to the process by which sediment is carried downstream by the flowing water of a river.
Which of the following factors can help to reduce riverbank erosion?
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Vegetation cover
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Riprap
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Dams
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Increased water velocity
A
Correct answer
Explanation
Vegetation cover along riverbanks can help to reduce erosion by stabilizing the soil and reducing the impact of flowing water.
What is the term used to describe the process by which sediment is deposited at the mouth of a river?
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Delta formation
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Sedimentation
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Erosion
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Transportation
A
Correct answer
Explanation
Delta formation occurs when sediment is deposited at the mouth of a river, typically where the river meets a larger body of water.
What is the term used to describe the process by which sediment is eroded from a riverbank?
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Erosion
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Transportation
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Deposition
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Sedimentation
A
Correct answer
Explanation
Erosion refers to the process by which sediment is worn away from a riverbank by the erosive action of flowing water.
What is the term used to describe the sediment that is deposited on the bed of a river?
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Bedload
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Suspended load
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Dissolved load
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All of the above
A
Correct answer
Explanation
Bedload refers to the sediment that is transported along the bed of a river by rolling, sliding, or saltation.
What is the term used to describe the process by which sediment is transported by a river?
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Erosion
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Transportation
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Deposition
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Sedimentation
B
Correct answer
Explanation
Transportation refers to the process by which sediment is carried downstream by the flowing water of a river.