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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.

Expert · Level 6 · 23 questions

TOPIC PRACTICE

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23 questions

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  1. Steep slope and fast current
  2. Low slope, slow flow and high silt
  3. Complete absence of water
  4. Marine corals and deep sea
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  1. Change in river-water colour
  2. Number of fish
  3. Change in slope, velocity and sediment-carrying capacity
  4. Moonlight
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  1. It drains into the Bay of Bengal
  2. It becomes Meghna in Assam
  3. It completely merges with Ganga
  4. It carries water through the north-west toward the Arabian Sea
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  1. It is a single stream without tributaries
  2. It is an extensive system connecting diverse geographical regions
  3. It flows only in Tibet
  4. It ends in the Arabian Sea
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  1. By deposition of marine corals
  2. By cooling of lava
  3. By sediment deposition within the channel and division of flow
  4. By desert wind erosion
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  1. Only to know the river colour
  2. Only to know the taste of water
  3. Only to identify vegetation
  4. To understand source, course, tributaries, landforms and final outlet
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  1. Through changes in glacier melt and seasonal flow balance
  2. By immediately turning rivers into corals
  3. By making all rivers originate from the sea
  4. By ending gravity
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  1. They are small closed lakes
  2. They are only coastal drains
  3. They form extensive river systems affecting large plains
  4. They have no drainage basin
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  1. Taste of river water
  2. Number of riverside trees
  3. Colour of fish
  4. Source, tributaries, confluence and mouth
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  1. Different processes operate in different parts of the river
  2. Deposition never occurs in the river
  3. The river always flows at the same speed
  4. The river forms landforms only in the sea
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  1. They all end in the same lake
  2. Their names are the same
  3. They have no tributaries
  4. Their sources, tributaries, courses and mouths are different
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  1. Understanding transboundary river course and regional names
  2. Understanding only local ponds
  3. Understanding only sea waves
  4. Understanding only desert winds
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  1. Peninsular rivers are mainly rain-fed while Himalayan rivers receive rainfall and snowmelt
  2. Peninsular rivers always originate from glaciers
  3. Himalayan rivers flow only in summer
  4. There is no source difference between them
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  1. Large drainage basin and greater water collection
  2. Absence of water in the main river
  3. End of all rivers
  4. River becoming only a lake
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  1. Writing only one river name
  2. Linking source, slope, erosion, deposition and human use
  3. Remembering only the mouth
  4. Treating only floods as the cause
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  1. When a river suddenly enters a lower-slope area from a steep slope
  2. When a river flows in deep sea
  3. When a river has no sediment
  4. When a river becomes completely underground
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  1. Fast flow and high energy can carry larger particles
  2. River water is completely still
  3. The river carries only sea salt
  4. There is no gravity in the upper course
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  1. It affects the interaction of river sediment, saline water and mangrove environment
  2. It forms glaciers in the Himalayas
  3. It joins the Indus with the Ganga
  4. It ends the river in a desert
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  1. Because silt, slope, glacier melt and river course also affect floods
  2. Because rainfall has no relation with rivers
  3. Because Himalayan rivers never flood
  4. Because all floods come from marine volcanoes
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  1. It explains boundaries of different river basins and direction of water flow
  2. It tells the taste of river water
  3. It determines the number of fish
  4. It separates a river from the sea
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  1. Due to high sediment load and changing discharge
  2. Due to permanent lava flow
  3. Due to complete lack of water in the river
  4. Due to marine corals
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  1. Stability of river flow in dry seasons may be affected
  2. The river will immediately become marine coral
  3. The river direction will always reverse
  4. All tributaries will end and become lakes
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  1. Because it helps explain floods, deltas, alluvial plains and course changes
  2. Because it only tells river colour
  3. Because sediment plays no role in river processes
  4. Because it directly measures sea temperature

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