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 process by which rocks are broken down into smaller particles?
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Weathering
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Erosion
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Deposition
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Compaction
A
Correct answer
Explanation
Weathering is the process by which rocks are broken down into smaller particles by the action of physical, chemical, and biological agents.
What is the term for the movement of sediment by wind?
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Aeolian
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Fluvial
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Glacial
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Mass wasting
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Correct answer
Explanation
Aeolian processes are those that are associated with the wind. The term 'aeolian' is derived from Aeolus, the Greek god of the winds.
What is the process by which sedimentary rocks are formed?
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Compaction and cementation
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Melting and crystallization
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Metamorphism
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Weathering and erosion
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Correct answer
Explanation
Sedimentary rocks are formed when sediment is compacted and cemented together. Compaction occurs when the weight of overlying sediment presses down on the sediment below, causing it to become denser. Cementation occurs when minerals dissolved in water are deposited between the sediment particles, binding them together.
What is the term for the process by which rocks are changed by heat, pressure, and chemical reactions?
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Weathering
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Erosion
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Metamorphism
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Deposition
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Correct answer
Explanation
Metamorphism is the process by which rocks are changed by heat, pressure, and chemical reactions. Metamorphic rocks are formed when existing rocks are subjected to extreme conditions that cause them to change their mineral composition and texture.
What is the term for the process by which rocks are broken down and transported by the action of glaciers?
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Glacial erosion
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Glacial deposition
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Glacial till
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Periglacial processes
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Correct answer
Explanation
Glacial erosion is the process by which rocks are broken down and transported by the action of glaciers. Glaciers are large masses of ice that move slowly over the Earth's surface, eroding the rocks beneath them.
Which of the following is NOT a type of glacial deposit?
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Moraine
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Till
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Outwash plain
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Sand dunes
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Correct answer
Explanation
Sand dunes are not glacial deposits. They are formed by the action of wind, not glaciers.
What is the term for the process by which groundwater dissolves and removes minerals from rocks?
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Weathering
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Erosion
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Dissolution
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Percolation
C
Correct answer
Explanation
Dissolution is the process by which groundwater dissolves and removes minerals from rocks. This process can create caves and other karst features.
Which of the following is a common method for controlling wind erosion?
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Windbreaks
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Cover crops
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Strip cropping
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All of the above
D
Correct answer
Explanation
Windbreaks, cover crops, and strip cropping are all effective methods for controlling wind erosion by reducing wind speed and protecting the soil surface.
What is the process by which coral reefs are formed called?
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Corallogenesis
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Biomineralization
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Calcification
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Lithification
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Correct answer
Explanation
Corallogenesis is the process by which coral reefs are formed. It involves the growth and accumulation of coral skeletons over time.
Which of these is a landform created by the deposition of sediment by a river as it enters a larger body of water?
A
Correct answer
Explanation
A delta is formed when a river meets a larger body of water, such as an ocean or lake, and deposits its sediment. Over time, the sediment builds up and creates a fan-shaped landform.
What is the term for a deep, narrow valley with steep sides, typically formed by the erosive action of a river?
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Correct answer
Explanation
A canyon is a deep, narrow valley with steep sides, typically formed by the erosive action of a river over a long period of time.
What is the term for a long, narrow inlet of the sea between high cliffs, typically formed by glacial erosion?
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Correct answer
Explanation
A fjord is a long, narrow inlet of the sea between high cliffs, typically formed by glacial erosion.
Which of these is a flat-topped mountain with steep sides, typically formed by the erosion of a plateau?
D
Correct answer
Explanation
A mesa is a flat-topped mountain with steep sides, typically formed by the erosion of a plateau.
Which of these is a type of coastal landform formed by the deposition of sediment by waves and currents?
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Correct answer
Explanation
A beach is a type of coastal landform formed by the deposition of sediment by waves and currents.
Which of these is a type of waterfall formed when a river flows over a steep drop in elevation?
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Correct answer
Explanation
A cascade is a type of waterfall formed when a river flows over a steep drop in elevation.