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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.

Practice questions

What is the most correct basis for identifying antecedent Himalayan rivers?ExpertLevel 32What is the combined role of glaciers and monsoon in the perennial nature of Himalayan rivers?ExpertLevel 32The formation of gorges in Himalayan rivers is most closely linked with what?ExpertLevel 32Which criterion is most important in calling the Indus Ganga and Brahmaputra systems Himalayan?ExpertLevel 32Which group is suitable for correctly identifying Indian tributaries of the Indus system?ExpertLevel 32The flow of the Indus in Ladakh clarifies which geographical relation in India?ExpertLevel 32Which place marks the naming of Ganga after the confluence of Bhagirathi and Alaknanda?ExpertLevel 32What understanding of the Ganga develops by studying Gangotri Glacier and Devprayag together?ExpertLevel 32What change in river work is shown when the Ganga enters plains near Haridwar?ExpertLevel 32What is the correct reason for treating Yamuna as a tributary in the Ganga system?ExpertLevel 32Why is it important to remember the difference between Prayagraj and Devprayag?ExpertLevel 32On what basis are Ghaghara Gandak and Kosi grouped together in the Ganga system?ExpertLevel 32The course shifting tendency of Kosi can be explained by which reason?ExpertLevel 32What is indicated by calling Son a southern tributary of the Ganga?ExpertLevel 32How is Chambal indirectly linked with the Ganga system?ExpertLevel 32Which regional sequence of Brahmaputra names is correct?ExpertLevel 32The wide flow of Brahmaputra in Assam is linked with the combined effect of which factors?ExpertLevel 32The dense distributary network in the Ganga Brahmaputra delta is a result of which process?ExpertLevel 32What is the basis for considering Sundarbans a result of the Ganga Brahmaputra system?ExpertLevel 32By which long term process were the northern plains formed by Himalayan rivers?ExpertLevel 32