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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 4 · 25 questions

Practice questions

01Why is balancing conservation and economy necessary in the context of Dal Lake?

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02Which option correctly gives a cause of lake formation and an example?

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03Which scientific idea explains the moderating effect of lakes on local climate?

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04If a lake lies in a dry region and its water does not flow out then why can salinity increase in it?

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05Which option correctly gives the environmental importance of lakes?

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06What can be the most direct effect of excessive water withdrawal from lakes?

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07Which lake is correctly linked with hill tourism in Uttarakhand?

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08Why is it appropriate to link lakes with wetland conservation programmes such as Ramsar?

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09Which option correctly matches the lake and type?

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10What can be a major human made cause for decline of biodiversity in lakes?

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11What is the best basis for studying Wular and Dal lakes together?

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12Under which condition can a lake shift from being a water resource to becoming a water crisis issue?

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13Which benefit is most associated with plantation along lake shores?

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14Which example best shows diversity in lake formation?

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15Which option correctly relates a lake with an economic use?

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16Why is wastewater treatment necessary to maintain lake water quality?

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17Which lake is linked with both Manipur and floating vegetation?

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18Which sign may appear when the balance of water and organisms in a lake is disturbed?

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19Why is it necessary to study location type use and problem together in lakes?

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20Which is the most balanced hard level conclusion about lakes?

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21Why is controlled water withdrawal considered a lake conservation measure?

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22Under which condition can natural recharge of a lake become weak?

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23Which option correctly matches a lake problem with its effect?

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24Which combined measure is most suitable for sustainable lake management?

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25What is the most scientific reason for rising salinity in a saline lake formed in a closed drainage basin?

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