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
Which option correctly gives the environmental importance of lakes?HardLevel 39What can be the most direct effect of excessive water withdrawal from lakes?HardLevel 39Which lake is correctly linked with hill tourism in Uttarakhand?HardLevel 39Why is it appropriate to link lakes with wetland conservation programmes such as Ramsar?HardLevel 39Which option correctly matches the lake and type?HardLevel 39What can be a major human made cause for decline of biodiversity in lakes?HardLevel 39What is the best basis for studying Wular and Dal lakes together?HardLevel 39Under which condition can a lake shift from being a water resource to becoming a water crisis issue?HardLevel 39Which benefit is most associated with plantation along lake shores?HardLevel 39Which example best shows diversity in lake formation?HardLevel 39Which option correctly relates a lake with an economic use?HardLevel 39Why is wastewater treatment necessary to maintain lake water quality?HardLevel 39Which lake is linked with both Manipur and floating vegetation?HardLevel 39Which sign may appear when the balance of water and organisms in a lake is disturbed?HardLevel 39Why is it necessary to study location type use and problem together in lakes?HardLevel 39Which is the most balanced hard level conclusion about lakes?HardLevel 39Why is controlled water withdrawal considered a lake conservation measure?HardLevel 39Under which condition can natural recharge of a lake become weak?HardLevel 39Which option correctly matches a lake problem with its effect?HardLevel 39Which combined measure is most suitable for sustainable lake management?HardLevel 39