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Subjects

Geography

The Himalayan Rivers

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.

Expert · Level 6 · 23 questions

Practice questions

01Under which condition can drainage problems increase in the lower Ganga plain?

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Answer and explanation

02What is the basic reason for landforms changing in the upper, middle and lower courses of a Himalayan river?

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03Which conclusion correctly links the Indus system with western drainage?

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04What does the presence of Himalayan and plateau tributaries in the Ganga system show?

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05How can river-island formation in the Brahmaputra be best explained?

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06Why is it necessary to study a Himalayan river from source to mouth?

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07How can climate change affect Himalayan rivers?

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08What conclusion follows from the long course and dense tributary network of Himalayan rivers?

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09What should be given the most attention in difficult map questions on Himalayan rivers?

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10What conclusion about a Himalayan river follows from the presence of both deep valleys and plain meanders?

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11Why is it necessary to study Indus, Ganga and Brahmaputra as separate river systems?

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12What geographical understanding is needed to understand Brahmaputra's changing names and flow from Tibet to Bangladesh?

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13What is the most appropriate reason for seasonal difference between Himalayan and peninsular rivers?

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14What is the most important effect of a dense tributary network in Himalayan rivers?

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15At expert level, the best answer to Himalayan river questions is built on what basis?

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16When is the possibility of alluvial fan formation higher in the mountain-front course of Himalayan rivers?

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17Why can sediment size generally be larger in the upper courses of Himalayan rivers?

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18What is the importance of tidal influence in the combined Ganga-Brahmaputra Delta?

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19Why is it not enough to explain floods in Himalayan rivers only by rainfall?

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20Why is the study of watershed important in Himalayan river systems?

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21Why can a braided pattern develop in the Brahmaputra valley?

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22What long-term effect is possible if glaciers shrink in the source region of Himalayan rivers?

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23Why is understanding sediment source important in expert analysis of a Himalayan river?

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