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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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Medium · Level 33 · brahmaputra floods,assam,monsoon
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  1. Because its water and sediment load increase greatly during monsoon
  2. Because it dries up in Assam
  3. Because it flows only underground
  4. Because it receives no tributaries
Medium · Level 33 · meanders,plains,himalayan rivers
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  1. Low slope in plains slows the river and forms bends
  2. The slope becomes very steep in plains
  3. The river water freezes completely
  4. Rivers stop flowing in plains
Medium · Level 33 · alluvial plains,deposition,sediment
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  1. Deposition of sediment
  2. Eruption of lava
  3. Blowing of desert sand
  4. Erosion by sea waves
Medium · Level 33 · drainage basin,river system,himalayan rivers
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  1. Because they travel long distances and receive many tributaries
  2. Because they remain limited to small hills
  3. Because their flow does not reach the sea
  4. Because they have no tributaries
Medium · Level 33 · farakka,bhagirathi hugli,ganga
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  1. One branch flows south as Bhagirathi-Hugli
  2. The whole river turns toward the Western Ghats
  3. The river goes directly toward the Arabian Sea
  4. The river ends in Rajasthan
Medium · Level 33 · padma,ganga,bangladesh
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  1. Padma
  2. Dihang
  3. Jhelum
  4. Kabul
Medium · Level 33 · meghna,bay of bengal,ganga brahmaputra
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  1. Meghna
  2. Narmada
  3. Sabarmati
  4. Mahanadi
Medium · Level 33 · indus,arabian sea,pakistan
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  1. Arabian Sea
  2. Bay of Bengal
  3. Red Sea
  4. Caspian Sea
Medium · Level 33 · v shaped valley,gorges,young river
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  1. Deep gorges and V-shaped valleys
  2. Sea coral reefs
  3. Sandy dunes
  4. Lagoon lakes
Medium · Level 33 · irrigation,alluvial soil,agriculture
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  1. Because it supports irrigation and fertile alluvial soil
  2. Because it only deposits salt in fields
  3. Because it keeps rivers dry all year
  4. Because it is useful only for marine fishing
Medium · Level 33 · antecedent drainage,himalayas,river course
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  1. Rivers existed before mountain uplift and kept their course by erosion
  2. Rivers formed only after seas were formed
  3. Rivers flow uphill without slope
  4. Rivers are only man-made canals
Medium · Level 33 · indus,brahmaputra,gorges
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  1. Because their flow continued erosion during mountain uplift
  2. Because they originated only in plains
  3. Because they have no water flow
  4. Because they are formed by sea waves
Medium · Level 33 · kosi,floods,sediment
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  1. Because it brings heavy sediment and tends to change course
  2. Because it never originates from the Himalayas
  3. Because it flows only in the sea
  4. Because it dries up in the rainy season
Medium · Level 33 · delta formation,sediment,ganga brahmaputra
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  1. Because they carry much sediment from plains and deposit it in calmer sea areas
  2. Because they carry no sediment
  3. Because they end in mountains
  4. Because they are only artificial canals
Medium · Level 33 · floodplain,ganga plain,alluvium
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  1. Spreading and deposition of fine sediment during floods
  2. Deposition of volcanic lava
  3. Glacier falling directly into the sea
  4. Valley formation by desert wind
Medium · Level 33 · river course,slope,erosion deposition
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  1. Because slope, velocity and sediment-carrying capacity change
  2. Because river water flows at the same speed everywhere
  3. Because glaciers exist in all parts
  4. Because the river never moves away from the sea
Medium · Level 33 · brahmaputra,silt,tibet assam
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  1. Tibet has less water in a cold dry area while India receives more rainfall
  2. The river joins the sea in Tibet
  3. The river completely dries in India
  4. No tributary joins it in India
Medium · Level 33 · tributaries,river system,drainage basin
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  1. They increase water, sediment and drainage area
  2. They always stop the main river
  3. They keep the river away from the sea
  4. They make all water underground
Medium · Level 33 · ganga plain,northern plains,alluvium
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  1. Northern alluvial plains
  2. Deccan lava plateau
  3. Sand dunes of the Thar Desert
  4. Coral islands of Andaman
Medium · Level 33 · satluj,indus system,tributary
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  1. Indus river system
  2. Brahmaputra river system
  3. Ganga river system
  4. Krishna river system