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Subjects

Geography

Lakes

झीलें

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.

Practice questions

What can be one human cause of shrinking lakes?MediumLevel 38Which option gives examples associated with freshwater lakes only?MediumLevel 38In which condition can lakes be related to groundwater recharge?MediumLevel 38Lack of oxygen in lake water can be most harmful for what?MediumLevel 38What is a good strategy to find the correct answer in lake-based questions?MediumLevel 38If heavy construction occurs along a lake shore what may happen to natural drainage?MediumLevel 38Which option shows an integrated plan for lake conservation?MediumLevel 38Which statement best shows the balanced importance of lakes?MediumLevel 38Excessive withdrawal of water from lakes can increase which problem?MediumLevel 38Why is maintaining green areas around lakes useful?MediumLevel 38Why are lakes called natural water reservoirs?MediumLevel 39What is the main reason for high salinity in Sambhar Lake?MediumLevel 39Which part of a river is involved in the formation of an oxbow lake?MediumLevel 39What is the main basis for identifying Chilika Lake as a coastal lagoon?MediumLevel 39Which lake is associated with floating vegetation called phumdi?MediumLevel 39In which category is it most appropriate to place Wular Lake?MediumLevel 39Why can siltation become a problem in lakes?MediumLevel 39Gobind Sagar Lake is related to which formation?MediumLevel 39The geographical importance of Pulicat Lake is linked with what?MediumLevel 39The moderating effect of lakes on local temperature is due to which property?MediumLevel 39

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