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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.

Hard · Level 3 · 25 questions

Practice questions

01If strong erosion is found in the upper course and deposition in the lower course of a Himalayan river, what does it show?

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02What is the strongest basis for considering Himalayan rivers as examples of antecedent drainage?

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03What is the main geographical reason for deep gorges in the upper courses of the Indus and Brahmaputra?

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04Which combined reason mainly keeps flow in Himalayan rivers throughout the year?

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05If a river shows strong erosion in the upper course and wide deposition in the lower course, which feature of a Himalayan river does it show?

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06Why does the Indus river system have great historical importance despite its limited area in India?

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07Studying Jhelum, Chenab, Ravi, Beas and Satluj together strengthens which understanding?

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08The use of the name Ganga after Devprayag shows which river science fact?

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09How should the position of Yamuna in the Ganga system be correctly understood?

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10What is the correct reason for linking Ghaghara, Gandak and Kosi with floods in the Ganga system?

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11What is the basis for distinguishing Chambal, Betwa and Son from Himalayan tributaries?

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12Which explanation correctly describes the changing nature of the Brahmaputra from Tibet to Assam?

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13What is the most appropriate reason for considering the Brahmaputra flood-prone in Assam?

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14Which is the most important reason for the huge size of the Ganga-Brahmaputra Delta?

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15What is the geographical significance of the Ganga's bifurcation near Farakka?

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16The correct sequence of Padma, Jamuna and Meghna shows which river journey?

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17What is the basic reason for meanders and oxbow lakes in Himalayan river plains?

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18Which option correctly explains the formation of natural levees by Himalayan rivers?

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19Why is the Kosi River known as a river that changes its course?

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20If a river system has many tributaries, what will be the effect on its drainage basin?

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21The Indus draining into the Arabian Sea and Ganga-Brahmaputra into the Bay of Bengal explains which concept?

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22Why are alluvial plains of Himalayan rivers highly fertile?

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23Why would the Ganga system be incomplete without understanding Bhagirathi and Alaknanda?

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24What does Yamuna's journey from Yamunotri to Prayagraj show?

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25What does the Brahmaputra being known as Tsangpo, Dihang and Brahmaputra show?

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