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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.

Medium · Level 5 · 25 questions

Practice questions

01Why are lakes called natural water reservoirs?

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02What is the main reason for high salinity in Sambhar Lake?

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03Which part of a river is involved in the formation of an oxbow lake?

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04What is the main basis for identifying Chilika Lake as a coastal lagoon?

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05Which lake is associated with floating vegetation called phumdi?

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06In which category is it most appropriate to place Wular Lake?

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07Why can siltation become a problem in lakes?

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08Gobind Sagar Lake is related to which formation?

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09The geographical importance of Pulicat Lake is linked with what?

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10The moderating effect of lakes on local temperature is due to which property?

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11The economic importance of Dal Lake is mainly linked with what?

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12Why is stopping wastewater important in lake conservation?

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13Kolleru Lake is known for which geographical location?

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14Vembanad Lake is most correctly associated with which region?

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15The origin of Lonar Lake is considered linked with which special event?

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16Why can lagoon lakes contain a mixture of saline and fresh water?

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17What increases the problem of eutrophication in lakes?

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18Which lake and state match is incorrect?

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19How can lakes help in groundwater recharge?

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20How is the importance of lakes for ecosystems shown?

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21What effect can encroachment along lake shores have?

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22How should Nainital Lake be studied?

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23Which is the most practical use of freshwater lakes?

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24Why does the water level of lakes change seasonally?

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25Which lake is linked with a major inland saline water body of India?

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