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
What is the term used to describe the process of permafrost melting or thawing?
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Permafrost degradation
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Permafrost subsidence
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Permafrost thaw
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Permafrost collapse
C
Correct answer
Explanation
Permafrost thaw refers to the process of permafrost melting or warming, leading to changes in its physical and chemical properties.
Which of the following is a potential consequence of permafrost thaw?
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Increased soil erosion
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Release of ancient pathogens
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Disruption of infrastructure
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All of the above
D
Correct answer
Explanation
Permafrost thaw can lead to increased soil erosion, release of ancient pathogens, and disruption of infrastructure due to changes in ground stability.
How does permafrost influence the formation of unique landforms in cold regions?
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It promotes the development of pingos and palsas.
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It creates thermokarst landscapes.
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It has no impact on landform formation.
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It enhances soil erosion.
A
Correct answer
Explanation
Permafrost conditions favor the formation of unique landforms such as pingos (ice-cored hills) and palsas (peat mounds), which are characteristic features of permafrost regions.
What is the term used to describe the process of soil collapse and subsidence caused by permafrost thaw?
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Thermokarst
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Cryogenic subsidence
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Permafrost collapse
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Ground subsidence
A
Correct answer
Explanation
Thermokarst refers to the process of soil collapse and subsidence caused by permafrost thaw, resulting in the formation of unique landforms such as thaw lakes, sinkholes, and gullies.
Which of the following is a consequence of coastal erosion?
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Loss of beaches and dunes
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Increased flooding and storm damage
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Salinization of freshwater sources
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All of the above
D
Correct answer
Explanation
Coastal erosion can lead to the loss of beaches and dunes, which are natural buffers against storms and flooding. It can also result in increased flooding and storm damage, as well as the salinization of freshwater sources due to saltwater intrusion.
Which process is responsible for the formation of laterite soils?
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Erosion
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Leaching
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Weathering
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Deposition
C
Correct answer
Explanation
Laterite soils are formed through intense chemical weathering under tropical and subtropical conditions.
What is the term used to describe the process of glaciers moving forward?
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Glacial retreat
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Glacial advance
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Glacial surging
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Calving
B
Correct answer
Explanation
Glacial advance occurs when a glacier moves forward, typically due to an increase in snowfall or a decrease in melting.
What is the opposite of glacial advance?
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Glacial retreat
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Glacial stagnation
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Glacial surging
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Calving
A
Correct answer
Explanation
Glacial retreat is the opposite of glacial advance and occurs when a glacier moves backward, typically due to a decrease in snowfall or an increase in melting.
What is the term used to describe the process of glaciers breaking off into smaller pieces?
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Glacial retreat
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Glacial advance
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Glacial surging
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Calving
D
Correct answer
Explanation
Calving is the process of glaciers breaking off into smaller pieces, typically at the terminus of the glacier.
What is the term used to describe a sudden, rapid movement of a glacier?
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Glacial retreat
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Glacial advance
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Glacial surging
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Calving
C
Correct answer
Explanation
Glacial surging is a sudden, rapid movement of a glacier, typically occurring over a short period of time.
What is the term used to describe the area of land that was once covered by a glacier?
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Glacial till
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Glacial moraine
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Glacial outwash plain
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Glacial valley
A
Correct answer
Explanation
Glacial till is the term used to describe the area of land that was once covered by a glacier.
What is the term used to describe a ridge of sediment that is deposited at the edge of a glacier?
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Glacial till
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Glacial moraine
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Glacial outwash plain
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Glacial valley
B
Correct answer
Explanation
Glacial moraine is the term used to describe a ridge of sediment that is deposited at the edge of a glacier.
What is the term used to describe a plain of sediment that is deposited by a glacier?
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Glacial till
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Glacial moraine
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Glacial outwash plain
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Glacial valley
C
Correct answer
Explanation
Glacial outwash plain is the term used to describe a plain of sediment that is deposited by a glacier.
What is the term used to describe a valley that was carved by a glacier?
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Glacial till
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Glacial moraine
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Glacial outwash plain
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Glacial valley
D
Correct answer
Explanation
Glacial valley is the term used to describe a valley that was carved by a glacier.
What is the term used to describe the process of glaciers melting and releasing water?
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Glacial retreat
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Glacial advance
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Glacial surging
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Ablation
D
Correct answer
Explanation
Ablation is the term used to describe the process of glaciers melting and releasing water.