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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 33 · brahmaputra,tibet,assam
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  1. In Tibet it receives heavy rainfall and causes floods
  2. In Assam it dries into a small stream
  3. Cold dry Tibet and rainy India change its water and silt load
  4. It does not enter India
Hard · Level 33 · brahmaputra floods,assam,sediment
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  1. Low rainfall and hard river bed
  2. High rainfall, high discharge and heavy sediment
  3. Complete drying of the river
  4. Deposition of marine corals
Hard · Level 33 · ganga brahmaputra delta,sediment,deposition
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  1. Deposition of huge alluvial sediment by both rivers
  2. Only marine volcanic activity
  3. Erosion by desert winds
  4. Rivers flowing without sediment
Hard · Level 33 · farakka,ganga,padma,hugli
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  1. It completely joins Ganga with Indus
  2. It sends one branch as Bhagirathi-Hugli and another as Padma
  3. It ends the Ganga in a desert
  4. It makes the Ganga entirely underground
Hard · Level 33 · padma,jamuna,meghna,bangladesh
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  1. Indus route to the Arabian Sea
  2. The combined Ganga-Brahmaputra system in Bangladesh
  3. Yamuna route in Rajasthan
  4. Satluj joining Kaveri
Hard · Level 33 · meanders,oxbow lake,plains
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  1. Lateral erosion and deposition due to low slope in plains
  2. Only avalanches in mountains
  3. Reverse flow due to sea tides
  4. River flowing without water
Hard · Level 33 · natural levees,flood deposition,river plains
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  1. Repeated deposition of sediment along banks during floods
  2. Continuous freezing of river bed
  3. Rock cutting by sea waves
  4. Formation of sand dunes in desert
Hard · Level 33 · kosi,course change,silt
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  1. Because it carries heavy silt and flows on low slope in plains
  2. Because it flows under the sea
  3. Because it is a waterless river
  4. Because it is limited only to plateau
Hard · Level 33 · tributaries,drainage basin,river system
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  1. The drainage basin will generally be extensive
  2. The river system will end immediately
  3. Water will not reach the main river
  4. The river will always remain locked in a lake
Hard · Level 33 · river mouth,drainage direction,arabian sea,bay of bengal
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  1. Concept of river mouth and drainage direction
  2. Concept of measuring mountain height
  3. Leaf structure of forests
  4. Soil acidity
Hard · Level 33 · alluvial plains,fertile soil,agriculture
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  1. Because fine alluvial soil brought by rivers is deposited there
  2. Because only hard lava is found there
  3. Because no river flows there
  4. Because sea salt is always deposited
Hard · Level 33 · bhagirathi,alaknanda,ganga source
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  1. Because they are major in forming the source streams of the Ganga
  2. Because they are western branches of the Indus
  3. Because they are ocean currents
  4. Because they are only desert streams
Hard · Level 33 · yamuna,yamunotri,prayagraj
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  1. Origin in the Himalayas and joining Ganga as a tributary
  2. Becoming a Tibetan stream of Brahmaputra
  3. Independently draining into the Arabian Sea
  4. Disappearing in a desert
Hard · Level 33 · tsangpo,dihang,brahmaputra
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  1. A river's name and nature may change across regions
  2. A river has no source
  3. A river is only an artificial canal
  4. A river does not enter the sea
Hard · Level 33 · hydropower,steep slope,himalayan rivers
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  1. Steep slope and fast water flow
  2. Very low velocity and flat bed
  3. River ending in desert
  4. Entry of sea waves
Hard · Level 33 · delta,gorge,erosion,deposition
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  1. Deltas form by erosion and gorges by deposition
  2. Deltas form by deposition and gorges by vertical erosion
  3. Both form only by wind action
  4. Both form by marine corals
Hard · Level 33 · ganga tributaries,northern southern,source region
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  1. Their source region and flow direction
  2. Their colour and taste
  3. Guessing length without map
  4. Only hearing their names
Hard · Level 33 · floodplain,alluvium,fertility
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  1. Fine alluvial sediment is deposited and soil becomes fertile
  2. All soil permanently turns into stone
  3. Soil completely disappears
  4. Only marine sand is deposited
Hard · Level 33 · sundarban,delta,mangrove
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  1. Influence of river deposition and tidal coastal conditions
  2. Complete dominance of desert aridity
  3. Permanent spread of glacial ice
  4. Only plateau lava region
Hard · Level 33 · jamuna,yamuna,river names
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  1. Jamuna is the Brahmaputra's name in Bangladesh and Yamuna is a tributary of Ganga
  2. Both are branches of the Indus
  3. Both are only ocean currents
  4. Yamuna is the Tibetan name of Brahmaputra