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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 4 · 25 questions

Practice questions

01If a lake's outlet is blocked what effect may occur on water and salts?

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02What is the similarity between Chilika and Pulicat lakes?

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03Dal Lake's tourism importance is most associated with which feature?

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04Which lake-feature pair is correctly matched?

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05If wastewater is directly released into a lake which problem may appear first?

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06How can lakes support river flow during dry season?

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07In which situation can the ecological balance of a lake be disturbed?

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08Why are glacial lakes discussed in the context of climate change?

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09Which lake-state match is correct?

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10What effect is possible when encroachment increases along lake shores?

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11What problem can occur when invasive plants like water hyacinth grow in lakes?

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12Fish resources from lakes support which type of livelihood?

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13Which pair shows an incorrect lake-feature match?

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14Which measure is most effective for maintaining water quality in lakes?

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15What relationship can exist between a lake and a reservoir?

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16What can be one human cause of shrinking lakes?

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17Which option gives examples associated with freshwater lakes only?

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18In which condition can lakes be related to groundwater recharge?

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19Lack of oxygen in lake water can be most harmful for what?

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20What is a good strategy to find the correct answer in lake-based questions?

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21If heavy construction occurs along a lake shore what may happen to natural drainage?

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22Which option shows an integrated plan for lake conservation?

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23Which statement best shows the balanced importance of lakes?

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24Excessive withdrawal of water from lakes can increase which problem?

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25Why is maintaining green areas around lakes useful?

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