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Subjects

Geography

Role of Rivers

In Class 9 Geography, this topic from the chapter “Drainage” explains how rivers shape the land through erosion, transportation and deposition. Students learn how river systems and drainage patterns influence plains, valleys, agriculture, settlements, transport and the availability of water. The topic also highlights the importance of rivers in human life, along with challenges such as pollution, floods and the need for careful conservation and management of river resources.

Medium · Level 2 · 25 questions

Practice questions

01If a river becomes polluted what effect can it have on irrigation?

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Answer and explanation

02What is the benefit of maintaining green belts along rivers?

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03When can religious fairs linked with rivers increase environmental pressure?

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04What is often the basic reason for river water disputes?

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05Why does reduction in river flow affect aquatic organisms?

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06Alluvial plains formed by rivers are especially useful for what?

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07Why can encroachment along river banks increase flood risk?

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08Rivers and lakes are both water resources but what is the distinct identity of a river?

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09How can sediments brought by rivers be used in construction?

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10What problem can increase when vegetation along a river is removed?

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11In which situation will river water be less useful for transport?

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12What can be a possible reason for decline in river fisheries?

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13Why can rivers be called a link between natural and human systems?

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14When use of river water increases in cities what responsibility also increases?

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15What precaution is necessary while farming on river floodplains?

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16Which environmental aspect should be considered while generating hydropower from rivers?

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17Sustainable use of river water is related to what?

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18Which option correctly states the ecological role of rivers?

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19What effect can river sediments reaching the sea have on coastal areas?

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20Why is dumping waste into river water economically harmful too?

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21What does an integrated approach in river management mean?

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22Which statement gives a balanced evaluation of the role of rivers?

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23Why is it wrong to limit the importance of rivers only to irrigation?

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24Why is the role of tributaries important in a river system?

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25Why is it important to maintain the natural flow of a river?

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