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.
Practice questions
Why is the Brahmaputra River often associated with floods in Assam?MediumLevel 33What is the main reason for large meanders of Himalayan rivers in plains?MediumLevel 33Which process is most important in forming alluvial plains by Himalayan rivers?MediumLevel 33Why is the drainage basin of Himalayan rivers generally large?MediumLevel 33Near Farakka in West Bengal, how does the Ganga divide?MediumLevel 33By what name is the main stream of the Ganga known in Bangladesh?MediumLevel 33By what name does the combined Ganga and Brahmaputra stream finally enter the Bay of Bengal?MediumLevel 33Into which sea does the Indus River finally drain?MediumLevel 33Which landform is more common in the youthful stage of Himalayan river courses?MediumLevel 33Why is the water of Himalayan rivers important for India's agricultural plains?MediumLevel 33What does antecedent drainage mean in the context of Himalayan rivers?MediumLevel 33Why do rivers like Indus and Brahmaputra cut across the Himalayas to form gorges?MediumLevel 33Why is the Kosi River considered highly sensitive to floods?MediumLevel 33Why do Himalayan rivers form deltas while some west-flowing rivers form estuaries?MediumLevel 33What is the main reason for the formation of floodplains in the Ganga plain?MediumLevel 33Why do features of upper, middle and lower courses of Himalayan rivers change along their long journey?MediumLevel 33Why does the Brahmaputra carry less silt in Tibet but become more silt-laden in India?MediumLevel 33How do tributaries of Himalayan rivers affect the river system?MediumLevel 33The Ganga River plays an important role in forming which plains of India?MediumLevel 33The Satluj River is part of which major Himalayan river system?MediumLevel 33