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Subjects

Geography

Mass movements, erosion, and deposition

In Class 11 Geography, this topic within “Geomorphic Processes” explains how weathering, gravity, running water, wind, glaciers, waves, and underground water reshape the land. Students learn to distinguish mass movements such as landslides and soil creep from erosion, examine how sediments are transported, and understand deposition that builds features such as fans, floodplains, dunes, moraines, and deltas. It connects processes, landforms, and environmental impacts through clear geographical examples.

Expert · Level 6 · 23 questions

TOPIC PRACTICE

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23 questions

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  1. Its horns generally point downwind
  2. Its horns always point upwind
  3. It forms only by water flow
  4. Its shape has no relation with wind
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  1. A glacier quarrying and carrying rock blocks
  2. Wind blowing dust
  3. River depositing silt
  4. Sea forming coral
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  1. Striated and polished surface
  2. Meandered river bend
  3. Crescentic sand dune
  4. Delta distributary
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  1. Glacial erosion
  2. Only wind deposition
  3. Only marine solution
  4. Only soil creep
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  1. Unsorted debris deposited by a glacier
  2. Sorted delta sediment deposited by a river
  3. Hard rock carved by wind
  4. Coral platform made by sea
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  1. Esker is a long ridge deposited in meltwater tunnels while moraine is direct glacial debris deposit
  2. Esker is marine coral and moraine is wind dune
  3. Both are only river deltas
  4. Neither contains sediment
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  1. Erosion at the cliff base causes retreat leaving a flat platform
  2. River deposits silt at the mouth
  3. Wind makes crescentic sand
  4. Glacier forms moraine
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  1. Wave erosion in weak rocks and collapse of the roof
  2. Deposition of silt by river flood
  3. Deposition of loess by wind
  4. Permanent growth of a glacier
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  1. Longshore drift transporting sediment along the coast
  2. Glacier widening a valley
  3. Soil creep on a slope
  4. Groundwater forming sinkholes
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  1. When constructive waves favor sediment deposition
  2. When destructive waves remove all sediment
  3. When seawater becomes zero
  4. When wind never blows on the coast
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  1. Underground solution in soluble limestone and roof collapse
  2. Bouncing of sand by wind
  3. Moraine deposition by glacier
  4. Delta distributaries formed by river
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  1. Deposition of calcite from lime-rich water
  2. Rolling of large stones by river
  3. Cutting of cliff by waves
  4. Slow creep of soil
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  1. Several alluvial fans may merge to form a bajada
  2. A bajada always forms from marine coral
  3. Alluvial fans form only on glaciers
  4. Sediment has no role in either
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  1. Because water mixed loose debris can move rapidly through channels
  2. Because debris always flies in air
  3. Because rain instantly turns rocks into gold
  4. Because the slope completely disappears
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  1. Root binding decreases and surface runoff increases
  2. Roots eliminate gravity
  3. Vegetation works only in sea
  4. Removing vegetation always stops rainfall
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  1. Intense rainfall increases both raindrop impact and runoff
  2. Intense rainfall always deposits soil
  3. Water never reaches the ground in intense rainfall
  4. Rainfall intensity has no relation with erosion
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  1. Deposition in the river bed and channel shallowing may occur
  2. The river will always start flowing toward the source
  3. All sediment will instantly become gas
  4. There will be no change in the channel
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  1. Steep gradient increases velocity and energy causing bed erosion
  2. Steep gradient makes the river completely still
  3. Steep gradient always turns water into vapor
  4. Steep gradient makes sediment impossible
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  1. Hard layers remain prominent while soft layers are eroded more
  2. All rocks decay at the same rate
  3. Only deposition occurs and no erosion
  4. Coral reefs form everywhere
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  1. It removes basal support and destabilizes the upper slope
  2. It instantly turns rock into strong cement
  3. It stops rainfall
  4. It pushes the slope upward
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  1. As energy decreases larger particles settle first and smaller particles later
  2. As energy decreases only gas settles
  3. Smaller particles always settle first and larger always last
  4. Particle size has no relation with deposition
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  1. Weathering creates loose material mass movement brings it down and water transports it further
  2. Weathering makes all material vanish so no process occurs
  3. Mass movement always stops weathering
  4. Erosion occurs only without material
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  1. When particle size always becomes zero
  2. When the slope becomes steeper than the natural stable angle of particles
  3. When the river performs only solution
  4. When sea tides deposit on mountains

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