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Subjects

Geography

The Himalayan Rivers

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.

Hard · Level 2 · 25 questions

TOPIC PRACTICE

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25 questions

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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
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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
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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
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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
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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
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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
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  1. Because slope and velocity decrease
  2. Because sea tides increase
  3. Because the source changes
  4. Because glaciers expand
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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
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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
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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
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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
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  1. Distributary
  2. Tributary
  3. Water divide
  4. Estuary
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  1. Tributary
  2. Distributary
  3. Glacier
  4. Water divide
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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
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  1. Monsoon season
  2. Completely dry winter
  3. Only summer night
  4. Sea tide period
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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
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  1. Two huge river systems deposit heavy sediments
  2. It is made of lava
  3. It is formed by desert wind
  4. It is completely covered by glaciers
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  1. The river bed may become shallow and increase flood possibility
  2. The river always forms deep ocean trench
  3. The river becomes waterless
  4. The river has no flow
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  1. Sediment deposition and multi channel flow
  2. Coral formation by sea waves
  3. Cone formation by lava
  4. Stability of glaciers
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  1. High mountain land can separate different river basins
  2. Water divide is river mouth
  3. Water divide is another name for distributary
  4. Water divide is a sea wave
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  1. Water collection tributaries and agricultural plains
  2. Only sea waves
  3. Only volcanic mountains
  4. Only desert dunes
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  1. Because source slope erosion deposition and flood relations must also be understood
  2. Because rivers have no relation with geography
  3. Because all rivers are the same
  4. Because river system is only map colour
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  1. Water supply erosion deposition plains agriculture and floods
  2. Only marine animals
  3. Only volcanic ash
  4. Only desert minerals
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  1. They are complex river systems linked with perennial water erosion deposition large plains and deltas
  2. They are only dry short streams
  3. They are only rivers of Peninsular Plateau
  4. They never enter plains
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  1. Confluences sources tributaries floods deposits and delta should be studied together
  2. Memorising only river names is enough
  3. River map is never needed
  4. Delta and flood have no relation

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