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 used to describe the process of ice loss from the surface of glaciers and ice caps due to melting and evaporation?
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Ablation
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Calving
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Accumulation
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Sublimation
A
Correct answer
Explanation
Ablation refers to the process of ice loss from the surface of glaciers and ice caps due to melting and evaporation.
What is the term used to describe the process of ice loss from the surface of glaciers and ice caps due to direct conversion from solid ice to water vapor?
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Ablation
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Calving
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Accumulation
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Sublimation
D
Correct answer
Explanation
Sublimation refers to the process of ice loss from the surface of glaciers and ice caps due to direct conversion from solid ice to water vapor.
What is the term used to describe the process of ice gain on the surface of glaciers and ice caps through snowfall and accumulation?
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Ablation
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Calving
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Accumulation
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Sublimation
C
Correct answer
Explanation
Accumulation refers to the process of ice gain on the surface of glaciers and ice caps through snowfall and accumulation.
What is the term for the process by which fertile land becomes desert?
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Salinization
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Desertification
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Erosion
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Deforestation
B
Correct answer
Explanation
Desertification refers to the process by which fertile land becomes desert. It is caused by a combination of natural and human factors, leading to the degradation of land and the loss of its productivity.
What is the term for the process by which wind erodes soil and contributes to desertification?
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Deforestation
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Salinization
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Erosion
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Overgrazing
C
Correct answer
Explanation
Erosion, particularly wind erosion, is a major process that contributes to desertification. It involves the wearing away of soil by wind, leading to the loss of fertile topsoil and the degradation of land.
What is the term for the process by which waterlogging and high salt content in the soil lead to desertification?
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Salinization
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Erosion
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Deforestation
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Overgrazing
A
Correct answer
Explanation
Salinization is the process by which waterlogging and high salt content in the soil lead to desertification. It can occur naturally or be induced by human activities, such as poor irrigation practices.
What is the term for the process by which human activities, such as deforestation and overgrazing, contribute to desertification?
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Anthropogenic desertification
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Natural desertification
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Erosion
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Salinization
A
Correct answer
Explanation
Anthropogenic desertification refers to the process by which human activities, such as deforestation, overgrazing, and poor irrigation practices, contribute to desertification. It is a major driver of desertification worldwide.
Which of the following is a common measure taken to mitigate the impact of coastal erosion?
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Building seawalls
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Replenishing beaches with sand
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Planting vegetation along the coast
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All of the above
D
Correct answer
Explanation
To mitigate the impact of coastal erosion, various measures can be taken, such as building seawalls to protect against wave action, replenishing beaches with sand to restore lost sediment, and planting vegetation along the coast to stabilize dunes and reduce erosion.
What is the term used to describe the gradual transition from land to sea in a coastal landscape photograph?
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Horizon line
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Vanishing point
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Leading line
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Focal point
A
Correct answer
Explanation
The horizon line is the line that separates the land from the sea in a coastal landscape photograph.
What is the term used to describe the process of soil formation?
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Weathering
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Erosion
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Deposition
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Pedogenesis
D
Correct answer
Explanation
Pedogenesis is the process of soil formation, which involves the physical, chemical, and biological weathering of rocks and minerals, as well as the accumulation of organic matter.
What is the primary cause of soil erosion?
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Wind
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Water
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Gravity
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All of the above
D
Correct answer
Explanation
Soil erosion can be caused by wind, water, gravity, or a combination of these factors.
What is the term used to describe the process of removing excess water from soil?
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Drainage
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Irrigation
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Tillage
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Mulching
A
Correct answer
Explanation
Drainage is the process of removing excess water from soil to prevent waterlogging and improve soil aeration.
What is the phenomenon in which soil settles over time due to the expulsion of water from its pores?
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Compaction.
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Consolidation.
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Heave.
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Subsidence.
B
Correct answer
Explanation
Consolidation is the process in which soil settles over time due to the expulsion of water from its pores under the influence of an applied load.
What is the term used to describe the process of fertile land becoming desert-like due to various factors?
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Salinization
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Desertification
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Erosion
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Deforestation
B
Correct answer
Explanation
Desertification refers to the degradation of land in arid, semi-arid, and dry sub-humid regions, resulting in the loss of biological productivity and the inability to support human life.
What is the process by which limestone caves are formed?
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Dissolution
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Erosion
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Weathering
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Deposition
A
Correct answer
Explanation
Limestone caves are formed by the dissolution of limestone by water.