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Subjects

Geography

Role of Rivers

In Class 9 Geography, this topic from the chapter “Drainage” explains how rivers shape the land through erosion, transportation and deposition. Students learn how river systems and drainage patterns influence plains, valleys, agriculture, settlements, transport and the availability of water. The topic also highlights the importance of rivers in human life, along with challenges such as pollution, floods and the need for careful conservation and management of river resources.

Medium · Level 1 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. They collect and carry water according to slope
  2. They only form mountains
  3. They change wind direction
  4. They stop the Sun's heat
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  1. Because there are only stones there
  2. Because water and fertile alluvial soil are available
  3. Because there is no rainfall there
  4. Because rivers stop air
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  1. Permanent drought
  2. Salt in air
  3. Deposition of fresh alluvial sediment
  4. Volcanic smoke
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  1. When the river is completely dry
  2. When the river has no slope
  3. When the river carries only sand
  4. When fast flow and height difference are available
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  1. A river cuts land and also deposits sediment
  2. A river only makes air
  3. A river never forms landforms
  4. A river only freezes in the sea
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  1. Increase in river speed
  2. Deposition of sediment when river speed decreases
  3. Complete stopping of wind
  4. Sudden rise of mountains
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  1. They support water transport water supply and trade
  2. They always remove settlements
  3. They are not linked with any resource
  4. They exist only in glaciers
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  1. By helping irrigation fisheries and animal husbandry
  2. Only by making eclipses
  3. Only by spreading deserts
  4. By turning air solid
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  1. They always sank goods
  2. They helped transport heavy goods comparatively cheaply
  3. They completely stopped trade
  4. They flowed only on mountains
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  1. By seepage of water into the ground
  2. By water becoming fire
  3. By river becoming air
  4. By disappearance of sediment
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  1. Greater slope gives water more energy
  2. Water never flows there
  3. There is always sea there
  4. Only delta forms there
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  1. Water speed becomes very high
  2. Slope decreases and flow becomes slower
  3. The river completely dries up
  4. Mountains suddenly rise
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  1. They can store excess water for some time
  2. They permanently stop rainfall
  3. They turn rivers into soil
  4. They make sea disappear
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  1. Because water fertile land and routes are available there
  2. Because there is no resource there
  3. Because river is always poisonous there
  4. Because farming is impossible there
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  1. Only in mineral production
  2. In worship bathing pilgrimage and fairs
  3. Only in volcanoes
  4. Only in desert storms
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  1. Because industries need water for processing cooling and cleaning
  2. Because rivers close every industry
  3. Because industries do not need water
  4. Because rivers flow only in the sky
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  1. Instability of river bed and banks
  2. End of sunlight
  3. Mountain becoming sea
  4. End of all pollution
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  1. Because fertile soil and water are available there
  2. Because farming never happens there
  3. Because there is always snow there
  4. Because there is no transport there
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  1. Water availability may decrease downstream
  2. Sea becomes mountain
  3. All fields get irrigated automatically
  4. River pollution ends
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  1. Depth and flow are not the same everywhere
  2. Every river has gold
  3. Rivers never contain water
  4. Every river stays away from the sea
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  1. By providing water habitat nutrients and flow
  2. Only by throwing stones
  3. By changing the Sun's direction
  4. By melting mountains
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  1. Because it may contain impurities and germs
  2. Because pure water causes harm
  3. Because river water is always stone
  4. Because treatment dries the river
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  1. Because floods can also deposit fertile sediment
  2. Because floods never cause damage
  3. Because floods only form mountains
  4. Because floods end rivers
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  1. Valleys can provide natural routes and gentler gradients
  2. Valleys are always in the sky
  3. Valleys have no land
  4. Valleys are only volcanic smoke
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  1. Irrigation hydropower transport and fisheries
  2. Only Moon and stars
  3. Only volcanoes and deserts
  4. Only air and smoke

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