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
What is the most appropriate reason for considering lakes a part of the drainage system?ExpertLevel 39Why do some lakes in semi-arid regions contain water only during the rainy season?ExpertLevel 39What is a lake formed when a river meander gets cut off called?ExpertLevel 39Chilika Lake is best understood as which type of lake?ExpertLevel 39Which statement is correct regarding the origin of Wular Lake?ExpertLevel 39What is the main geographical reason for Sambhar Lake having saline water?ExpertLevel 39What is the role of a coastal barrier in the formation of a lagoon?ExpertLevel 39What is the usefulness of lakes in maintaining river flow during dry seasons?ExpertLevel 39Which statement best represents the origin of natural lakes?ExpertLevel 39Gobind Sagar is an example of which type of lake?ExpertLevel 39In which situation is an oxbow lake most likely to form?ExpertLevel 39If a coastal lake is influenced by sea water which feature is more likely?ExpertLevel 39What is the most important functional difference between a lake and a river?ExpertLevel 39Which option correctly shows the ecological importance of lakes?ExpertLevel 39Pulicat Lake is most closely related to which geographical category?ExpertLevel 39Why can salinity increase if a lake has no clear external outlet?ExpertLevel 39Which statement is more balanced regarding lakes and human use?ExpertLevel 39In names like Nainital and Bhimtal what does the word tal refer to?ExpertLevel 39Which type of lakes often have partial contact with or influence from the sea?ExpertLevel 39Which option correctly states the river process of lake formation?ExpertLevel 39