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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 2 · 25 questions

Practice questions

01What is the basic difference between a tributary and a distributary?

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02Which action of a river is main in forming flood plains?

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03Why does the possibility of delta formation increase in the lower course of a river?

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04If a river has steep slope and hard rocks in its upper course, which process will be more prominent?

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05Why do east-flowing Peninsular rivers generally form deltas in the Bay of Bengal?

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06On a map, if a river flows westward into the Arabian Sea and forms an estuary, which could it be?

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07If a student calls Cauvery a river of the Indus system, what is the error?

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08If forests decrease in a river basin, why can flood risk increase?

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09Why is river pollution considered a drainage system problem?

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10Why is wastewater treatment necessary in river conservation?

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11Which is the most balanced reason for development of settlements in river valleys?

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12Why is it incomplete to treat flood only as a destructive event?

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13In which situation can change in river course greatly affect human life?

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14What is the benefit of observing river direction and mouth together in a map-based question?

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15What is the best way to study a river system systematically?

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16What care should be taken while studying Yamuna, Ghaghara and Son together in the Ganga system?

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17Which comparative conclusion between Himalayan and Peninsular rivers is correct?

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18If tributaries join the main stream almost at right angles, which pattern is likely?

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19If a river network shows streams flowing in all directions from a high plateau centre, which pattern will it be?

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20How can alluvial soil, flood plain and delta be linked with one process?

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21Why is India's drainage studied in relation to the Arabian Sea and Bay of Bengal?

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22If a river has a very large catchment area, its discharge will be more affected by what?

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23Which combination is most correct while studying drainage system as a whole?

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24If a river basin has many tributaries, what effect can it have on the main river's discharge?

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25What does calling Himalayan rivers antecedent rivers indicate?

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