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Subjects

Geography

Role of Rivers

नदियों की भूमिका

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.

TOPIC PRACTICE

Quiz this set

Up to 20 questions from this page. Select your focus, then start.

20 questions

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Hard · Level 41 · seasonal flow,irrigation,agriculture
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  1. Irrigation water availability can change by season
  2. Irrigation always happens without water
  3. Floods occur in every season
  4. Rivers never connect with fields
Hard · Level 41 · environmental flow,river ecology,downstream
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  1. For aquatic ecology and downstream needs
  2. To keep the river always dry
  3. To stop all sediment
  4. To turn the river into desert
Hard · Level 41 · river tourism,waste management,environment
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  1. When waste management and crowd control are absent
  2. When the river is kept clean
  3. When environmental rules are applied
  4. When the number of boats is controlled
Hard · Level 41 · nutrients,soil fertility,agriculture
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  1. Soil fertility and agricultural production
  2. Formation of the Moon
  3. Formation of glaciers in desert
  4. Turning the sea into rock
Hard · Level 41 · water quality,drinking water,fisheries
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  1. Drinking water crisis fishery loss and irrigation risk
  2. Decrease in Sun temperature
  3. Disappearance of mountains
  4. Sea becoming fresh
Hard · Level 41 · catchment,soil conservation,siltation
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  1. Sediment runoff and siltation can decrease
  2. The river dries immediately
  3. River water always becomes saline
  4. All organisms disappear
Hard · Level 41 · source to mouth,river system,landforms
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  1. Because erosion deposition uses and risks change in different parts
  2. Because a river remains same everywhere
  3. Because mouth is not different from source
  4. Because a river only changes name
Hard · Level 41 · irrigation,water quality,river role
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  1. Irrigation and water quality risk
  2. Navigation and solar eclipse
  3. Hydropower and Moon formation
  4. Fisheries and mountain height
Hard · Level 41 · importance of rivers,livelihood,ecology
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  1. Rivers are linked with water resources landform formation livelihood culture and ecology
  2. Rivers only bring floods
  3. Rivers only provide hydropower
  4. Rivers are unrelated to human life
Hard · Level 41 · river conservation,waste treatment,floodplain
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  1. Waste treatment regulated water use riparian green belt and floodplain protection
  2. Releasing all waste into the river
  3. Increasing encroachment on floodplains
  4. Completely stopping river flow
Hard · Level 42 · drainage,rivers,erosion
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  1. Strong vertical erosion
  2. Slow lateral erosion
  3. Deposition by sea waves
  4. Sand deposition by wind
Hard · Level 42 · drainage,rivers,meanders
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  1. Abundance of waterfalls
  2. Lateral erosion and deposition
  3. Pressure of glaciers
  4. Volcanic activity
Hard · Level 42 · drainage,rivers,floodplains
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  1. Because rocky soil is present there
  2. Because rainfall is absent there
  3. Because rivers deposit fresh alluvium
  4. Because salinity is always high
Hard · Level 42 · drainage,rivers,delta
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  1. Very strong sea waves
  2. Very deep ocean trench
  3. Lack of silt in the river
  4. Abundant silt and calm sea water
Hard · Level 42 · drainage,rivers,settlement
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  1. They provided water, fertile land and transport
  2. They turned all regions into deserts
  3. They made agriculture impossible
  4. They completely removed minerals
Hard · Level 42 · drainage,rivers,hydropower
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  1. Because the water is always saline
  2. Because gradient and water velocity are high
  3. Because the river dries there
  4. Because deposition is highest there
Hard · Level 42 · drainage,rivers,siltation
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  1. Raised river bed and flood risk
  2. Complete drying of the sea
  3. Formation of the Himalayas
  4. Stoppage of rainfall
Hard · Level 42 · drainage,rivers,navigation
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  1. Flow is very shallow and rocky
  2. River is perennial, deep and relatively calm
  3. River flows only in monsoon
  4. Slope is very steep and current violent
Hard · Level 42 · drainage,rivers,alluvium
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  1. Only evaporation
  2. Only marine erosion
  3. Erosion, transportation and deposition
  4. Only volcanic eruption
Hard · Level 42 · drainage,rivers,pollution
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  1. Pollution of river water
  2. River moving away from the sea
  3. Increase in mountain height
  4. Soil no longer being alluvial