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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.

Expert · Level 6 · 22 questions

Practice questions

01Why do distributaries develop in a river delta?

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02Which statement most clearly shows a natural service of rivers?

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03Why is regulation necessary before using river water in industries?

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04What can be a possible effect of artificially straightening a river channel?

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05How can the presence of a lake or reservoir in a river system help in flood control?

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06Why can balanced sediment flow in a river be important for coasts?

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07What can be a major sign of declining biodiversity in a river?

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08Why is protection of a river's source region necessary for the whole river?

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09Why is transport of minerals and nutrients important in the role of rivers?

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10If a river bed fills with silt what will happen to its drainage capacity?

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11Why can controlled spread of floodwater be better than completely stopping river floodwater?

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12Why can water disputes arise in areas dependent on river water?

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13Which answer correctly includes both negative and positive effects of rivers?

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14In which area are alluvial fans made by rivers more likely to form?

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15Why is monitoring both quality and quantity of river water necessary?

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16Where are large pebbles and stones mostly found in a river bed?

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17Why is participation of local communities important in long-term river management?

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18In which situation can river erosion be both useful and harmful?

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19Which measure is most suitable to make economic uses of rivers sustainable?

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20Why is the work of a river not limited only to its channel?

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21Which option gives the most suitable scientific sequence of a river's role?

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22Which is a balanced expert-level conclusion on the role of rivers?

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