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Subjects

Geography

The Himalayan Rivers

हिमालयी नदियाँ

In Class 9 Geography, this topic from the chapter “Drainage” introduces the Himalayan river systems, especially the Indus, Ganga and Brahmaputra. Students learn how these rivers are fed by glaciers, snow and rainfall, making them largely perennial, and trace their courses, major tributaries and drainage patterns. The topic also explains how Himalayan rivers shape deep gorges, valleys, meanders, floodplains and deltas, while supporting farming, settlements and ecosystems. It highlights their economic importance as well as the challenges of floods, erosion and changing water conditions.

TOPIC PRACTICE

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Hard · Level 32 · khadar,flood plains,new alluvium
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  1. New alluvial deposits during floods
  2. Uplift of marine coral
  3. Deposition by desert wind
  4. Cooling of lava
Hard · Level 32 · upper course,lower course,erosion,deposition
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  1. Due to change in slope and velocity
  2. Due to change in river name
  3. Due to marine animals
  4. Due to desert sand
Hard · Level 32 · meanders,plain rivers,lateral erosion
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  1. Gentle slope causes slow flow and more lateral erosion
  2. Steep slope causes only downward erosion
  3. Sea waves bend the river
  4. River water ends completely
Hard · Level 32 · catchment,flood risk,himalayan rivers
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  1. They can collect more water and increase flood risk
  2. They always keep the river dry
  3. They make all rivers inland
  4. They turn sea into mountains
Hard · Level 32 · tributaries,river network,sediments
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  1. It can increase water and sediment in the main river
  2. It makes the main river flow backward from sea
  3. It turns the main river completely into a glacier
  4. It makes the main river nameless
Hard · Level 32 · ganga tributaries,northern,southern
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  1. Their source regions and water sources
  2. Length of their names
  3. Their colour and sound
  4. Their marine animals
Hard · Level 32 · hooghly river,ganga system,ganga delta,distributary,himlayan rivers,class 9 geography
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  1. It is a distributary channel of the Ganga delta
  2. It is the main channel of the Indus River
  3. It is the source of the Yamuna River
  4. It is a Himalayan mountain stream of the Kosi River
Hard · Level 32 · sediment load,delta,distributaries
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  1. Deposition and formation of distributaries
  2. Complete glacier formation of river
  3. Origin of river from sea
  4. Only conversion of delta into desert
Hard · Level 32 · bay of bengal,ganga brahmaputra delta,deposition
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  1. Ganga and Brahmaputra carry their water and sediments towards it
  2. Narmada and Tapi meet there
  3. Luni forms delta there
  4. Indus rises there
Hard · Level 32 · alluvial fan,foothills,deposition
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  1. When the river leaves mountains and slope suddenly decreases
  2. When the river rises from sea
  3. When the river has no sediment
  4. When the river becomes a volcano
Hard · Level 32 · plain course,deposition,velocity
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  1. Because slope and velocity decrease
  2. Because sea tides increase
  3. Because the source changes
  4. Because glaciers expand
Hard · Level 32 · alluvial soil,agriculture,northern plains
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  1. This soil forms fertile plains and supports agriculture
  2. This soil is always poisonous
  3. It turns fields into lava
  4. It is found only in the sea
Hard · Level 32 · indus system,pakistan,india
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  1. Many of its major tributaries are linked with north western India
  2. It lies completely in South India
  3. It is a distributary of Ganga
  4. It is a delta of the Bay of Bengal
Hard · Level 32 · brahmaputra,tibetan plateau,assam
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  1. Elevation slope and plain conditions change
  2. River water ends everywhere
  3. River flows backward from sea
  4. River always keeps the same speed
Hard · Level 32 · khadar,bhangar,agriculture
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  1. Khadar can be more renewed and fertile due to new deposits
  2. Khadar forms in the sea
  3. Bhangar is a glacier
  4. Both are lava soils
Hard · Level 32 · tributary,ganga system,river terms
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  1. Distributary
  2. Tributary
  3. Water divide
  4. Estuary
Hard · Level 32 · distributary,ganga delta,river mouth
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  1. Tributary
  2. Distributary
  3. Glacier
  4. Water divide
Hard · Level 32 · agriculture,settlement,himalayan plains
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  1. Development of dense agriculture and settlement in fertile plains
  2. Development of cities inside permanent glaciers
  3. Farming inside the sea
  4. Desert emptiness everywhere
Hard · Level 32 · monsoon,flood risk,himalayan rivers
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  1. Monsoon season
  2. Completely dry winter
  3. Only summer night
  4. Sea tide period
Hard · Level 32 · himalayan rivers,peninsular rivers,comparison
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  1. Himalayan rivers are more perennial and linked with young mountain erosion
  2. Himalayan rivers always rise from Western Ghats
  3. Peninsular rivers all rise from glaciers
  4. Both have the same water source