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Subjects

Geography

Lakes

In Class 9 Geography, the topic “Lakes” explains how these water bodies form part of the drainage system and differ from rivers in their shape, movement, and location. Students learn about natural lakes formed by tectonic activity, glaciers, river courses, and coastal processes, as well as human-made reservoirs. Indian examples such as Wular, Dal, Sambhar, Chilika, and Kolleru help connect ideas with maps and landscapes. The topic also examines how lakes store water, support irrigation, hydropower, fisheries, biodiversity, tourism, and flood regulation.

Expert · Level 2 · 25 questions

Practice questions

01What gives the broadest analysis of lake water level change?

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Answer and explanation

02When can a lake's role in groundwater recharge be more effective?

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03Which lake feature can be best linked with wetland conservation?

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04Which combination is most suitable for identifying Pulicat Lake?

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05What combined effect may occur when sedimentation and nutrient pollution increase together in lakes?

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06What conclusion is suitable when encroachment and water withdrawal occur together in lakes?

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07Why is tourism management necessary for Dal Lake conservation?

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08Which lake has both state and main identity given incorrectly?

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09What can be the most concerning effect of heavy metal pollution in lake water?

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10Why can shore construction obstruct natural water flow in lakes?

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11Under which condition can fish resources in a lake decline?

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12If recharge is low and water use is high what should be the first goal of sustainable management?

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13Which option gives the most suitable relation between lake formation process and example?

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14Why is the importance of lakes as wetlands not limited to water storage?

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15Why is it incomplete to treat lake sedimentation only as a natural problem?

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16How can chemical pollution and nutrient pollution in lakes be distinguished?

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17Which analysis best explains the uniqueness of Loktak Lake?

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18Why can lakes be considered sensitive indicators in climate change studies?

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19In which situation can fish death in a lake be linked with eutrophication?

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20Why is the role of community important in lake conservation?

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21Which option gives a correct pair of lake problem and solution?

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22If biodiversity of a lake is declining which combined assessment will be most useful?

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23Which lake is linked with Kerala in the wider context of coastal water and navigation tourism?

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24Which is the most mature conclusion about the multidimensional importance of lakes?

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25Which policy would be most balanced in lake management?

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