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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.

Hard · Level 6 · 24 questions

Practice questions

01What is the most accurate difference between a coastal lagoon and an inland saline lake?

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02What can be the most direct human made cause of biodiversity decline in lakes?

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03Which option incorrectly matches a lake with its type?

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04What can be a combined reason for reduction of flood absorption capacity in lakes?

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05Which lake is appropriate to identify as a unique wetland of Northeast India?

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06Which combined measure is most correct to protect both water quality and water quantity in lakes?

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07Entry of excess nutrients into lakes can increase from which source?

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08What is the main exam basis for studying Wular and Dal lakes together?

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09What practical effect can drying of lakes have on local society?

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10What is the main difference between Sambhar Lake and Chilika Lake?

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11Which problem can increase when water inflow decreases and evaporation increases in lakes?

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12Which condition is most necessary for sustainable fishing in lakes?

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13Which lake is correctly linked with both salt production and a dry region?

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14Why should location type and problem be studied together while studying lakes?

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15Why can natural recharge decrease when paved surfaces increase in a lake catchment?

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16Bird diversity in Chilika Lake is a result of what?

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17Which lake is appropriate to link with Srinagar's economy and tourism?

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18Which is the most integrated measure for lake conservation?

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19Under which condition will the ecological balance of a lake be most at risk?

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20Which option correctly shows diversity in lake origin?

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21What can be the combined effect of reduced inflow and increased siltation in a lake?

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22Why should a conservation plan for lakes consider not only lake water but also the catchment area?

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23If a lake shows excessive algal growth along with fish death what can be a likely cause?

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24Why is local community participation important in long term lake conservation?

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