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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

On what geomorphic basis is the difference between Bhangar and Khadar understood?ExpertLevel 32Why is Khadar considered more renewed than Bhangar?ExpertLevel 32Why does a Himalayan river show different work in upper and lower courses?ExpertLevel 32Which process combination explains meander formation in the Ganga plain?ExpertLevel 32What is the relation between large catchment areas of Himalayan rivers and flood risk?ExpertLevel 32What is the main result of a dense tributary network in Himalayan rivers?ExpertLevel 32What is the basis for separating northern and southern tributaries in the Ganga system?ExpertLevel 32Which statement is most correct while understanding Hooghly in the Ganga system?ExpertLevel 32Heavy sediment load in a delta area promotes which result?ExpertLevel 32Why is the Ganga Brahmaputra delta developed towards the Bay of Bengal?ExpertLevel 32Which condition in a Himalayan river is more favourable for forming alluvial fans?ExpertLevel 32Why does a Himalayan river tend to shift from erosion to deposition after reaching plains?ExpertLevel 32How does alluvial soil of Himalayan rivers support agriculture?ExpertLevel 32Why is it important to study the Indus system in India even though a large part lies in Pakistan?ExpertLevel 32The change in Brahmaputra's character from Tibetan Plateau to Assam is influenced by what?ExpertLevel 32Why can the agricultural value of Khadar in flood plains differ from Bhangar?ExpertLevel 32Which is the correct term for a stream joining the main river in the Ganga system?ExpertLevel 32Which is the correct term for a stream branching away from the main river in the Ganga delta?ExpertLevel 32Why is the relation between Himalayan river plains and human settlement strong?ExpertLevel 32Why can flood risk increase in Himalayan rivers during monsoon?ExpertLevel 32