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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

Vembanad Lake is mainly associated with which state?MediumLevel 37 What can increase the problem of eutrophication in lakes?MediumLevel 37 Which option does not correctly match the lake with the state?MediumLevel 37 The formation of Lonar Lake is considered to be linked with which event?MediumLevel 37 Which option gives a correct example of a natural and an artificial lake?MediumLevel 37 How does biodiversity benefit from lakes?MediumLevel 37 How can reservoir lakes help in hydropower?MediumLevel 37 Which result is most likely when lake water becomes polluted?MediumLevel 37 Which lake is placed among the major eastern coastal lagoon lakes of India?MediumLevel 37 What effect can drying of lakes have on surrounding areas?MediumLevel 37 Which option gives the most complete group of lake uses?MediumLevel 37 Which lake is associated with an inland saline water body of India?MediumLevel 37 What is the simplest geographical difference between a lake and a sea?MediumLevel 37 What problem can be caused by encroachment around lake shores?MediumLevel 37 Which statement shows a correct relation for both Wular and Dal lakes?MediumLevel 37 Which lake is most suitable to link with salt production?MediumLevel 37 How can the relation of lakes with agriculture be understood?MediumLevel 37 Which option gives a correct cause and example of lake formation?MediumLevel 37 Which is the most balanced conclusion about lakes?MediumLevel 37 What is the main difference between a coastal lagoon and an inland saline lake?MediumLevel 37