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Subjects

Geography

Drainage Systems in India

In this Class 9 Geography topic from the chapter Drainage, students learn how water flows across India through river systems, drainage basins, and networks. They explore the Himalayan and Peninsular river systems, compare their origins, courses, seasonal flow, and landforms, and understand patterns such as dendritic, trellis, and radial drainage. The topic also introduces the importance of rivers and lakes, along with concerns related to floods, pollution, and water management.

Hard · Level 5 · 25 questions

Practice questions

01Why are rivers like the Indus and Brahmaputra called antecedent rivers?

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02What is the main reason most Peninsular rivers are seasonal?

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03The westward flow of Narmada and Tapi is linked with which physical reason?

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04The highly winding course of rivers in the Ganga plain is most closely related to which process?

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05Which condition is most favourable for delta formation?

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06In which condition can a river mouth form an estuary rather than a delta?

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07What is the main difference between a basin and a watershed?

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08Why is dendritic drainage pattern common in South India?

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09In which geomorphic condition does a trellis drainage pattern generally form?

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10What does inland drainage of some rivers in the Aravalli region indicate?

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11Why does the Brahmaputra cause frequent floods in Assam?

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12What is the role of distributaries in the formation of the Sundarban Delta?

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13Why are Peninsular river valleys generally wider and shallower than Himalayan river valleys?

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14How should the Yamuna be correctly understood in the Ganga river system?

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15What is the major reason for ravine formation along rivers like the Chambal?

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16If a river carries large amounts of both water and sediment, what course is it likely to have in plains?

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17What is the main role of river systems in the fertile soils of the North Indian plains?

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18Why do east-flowing Peninsular rivers generally form more deltas?

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19Why do short west-flowing rivers from the Western Ghats not form large deltas?

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20What is the most suitable basis for calling the Godavari the Dakshin Ganga?

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21What is the geographical basis of water disputes over rivers like Krishna and Kaveri?

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22Why is the Indian part of the Indus river system geographically important?

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23What change occurs in drainage when river capture happens?

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24Why is it incomplete to link floods in the Ganga-Brahmaputra system only with heavy rainfall?

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25Which is the correct example of the relation between landform and drainage pattern?

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