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 geosynthetic material is commonly used for erosion control applications?
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Geotextiles
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Geogrids
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Geomembranes
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Turf Reinforcement Mats (TRMs)
A
Correct answer
Explanation
Geotextiles are commonly used for erosion control applications due to their ability to protect soil surfaces from wind and water damage.
What is the term used to describe the process of melting and refreezing of permafrost, which can occur due to climate change or mining activities?
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Cryoturbation
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Thermokarst
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Pingos
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Solifluction
B
Correct answer
Explanation
Thermokarst is the process of melting and refreezing of permafrost, resulting in the formation of various landforms such as sinkholes, lakes, and gullies.
What is the term for the study of the movement of water through the Earth's subsurface?
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Hydrogeology
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Hydrology
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Hydrodynamics
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Hydrometeorology
A
Correct answer
Explanation
Hydrogeology is the branch of hydrology that deals with the movement of water through the Earth's subsurface, including groundwater flow and aquifer recharge.
What is the term for the study of the movement of water on the Earth's surface?
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Hydrogeology
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Hydrology
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Hydrodynamics
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Hydrometeorology
B
Correct answer
Explanation
Hydrology is the branch of science that deals with the movement of water on the Earth's surface, including rivers, lakes, and oceans.
What is the process by which coral reefs are formed?
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Erosion
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Deposition
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Accretion
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Calcification
D
Correct answer
Explanation
Coral reefs are formed through the process of calcification, where tiny marine organisms called coral polyps secrete calcium carbonate to build their skeletons. Over time, these skeletons accumulate, forming massive coral structures.
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 term used to describe the process of soil formation. It involves the physical, chemical, and biological processes that transform parent material into soil.
What is the term used to describe the process of soil degradation?
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Weathering
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Erosion
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Deposition
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Desertification
D
Correct answer
Explanation
Desertification is the term used to describe the process of soil degradation, particularly in arid and semi-arid regions. It involves the loss of soil fertility and the transformation of productive land into desert-like conditions.
How does soil erosion affect soil structure?
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It removes the fertile topsoil.
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It exposes the subsoil, which is less fertile.
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It reduces soil organic matter content.
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All of the above
D
Correct answer
Explanation
Soil erosion affects soil structure by removing the fertile topsoil, exposing the subsoil which is less fertile, and reducing soil organic matter content.
What is the role of terraces in soil conservation?
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They reduce the slope length.
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They slow down the flow of water.
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They prevent soil erosion.
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All of the above
D
Correct answer
Explanation
Terraces play a crucial role in soil conservation by reducing the slope length, slowing down the flow of water, and preventing soil erosion.
Which of the following is NOT a common type of damage that mosaics may experience?
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Cracking
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Fading
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Erosion
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Oxidation
D
Correct answer
Explanation
Oxidation is not a common type of damage that mosaics experience, as they are typically made from materials that are resistant to corrosion.
What is the term used to describe the process by which marine debris breaks down into smaller pieces?
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Fragmentation
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Degradation
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Weathering
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Erosion
A
Correct answer
Explanation
Fragmentation refers to the process by which marine debris breaks down into smaller pieces due to physical, chemical, and biological factors.
What is the term used to describe the process by which marine debris is transported from land to the ocean?
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Land-based runoff
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Stormwater runoff
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Riverine discharge
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All of the above
D
Correct answer
Explanation
Land-based runoff, stormwater runoff, and riverine discharge are all processes by which marine debris is transported from land to the ocean.
What is the process by which water enters the soil from the surface?
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Infiltration
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Percolation
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Evaporation
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Transpiration
A
Correct answer
Explanation
Infiltration is the process by which water enters the soil from the surface, typically through the pore spaces between soil particles.
What is the process by which water moves downward through the soil?
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Infiltration
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Percolation
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Evaporation
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Transpiration
B
Correct answer
Explanation
Percolation is the process by which water moves downward through the soil, typically through the pore spaces between soil particles, until it reaches the groundwater table.
What is the process by which water moves from the soil to the atmosphere?
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Infiltration
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Percolation
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Evaporation
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Transpiration
C
Correct answer
Explanation
Evaporation is the process by which water moves from the soil to the atmosphere, typically through the stomata of plants or directly from the soil surface.