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 statement about saltwater lakes is correct?ExpertLevel 39Why are lakes associated with natural beauty and tourism?ExpertLevel 39What is the main difference between a human-made lake and a natural lake?ExpertLevel 39Which process may contribute to the formation of some coastal lakes in delta regions?ExpertLevel 39Why is understanding a drainage basin necessary in the study of lakes?ExpertLevel 39What long-term change can occur due to sediment deposition in a lake?ExpertLevel 39Why is conservation of lakes necessary for water resource management?ExpertLevel 39Why is Dal Lake discussed in both geography and tourism?ExpertLevel 39What may be negatively affected first when pollution increases in lakes?ExpertLevel 39Which option gives the water sources of a lake most broadly?ExpertLevel 39What can most influence seasonal changes in a lake water level?ExpertLevel 39Which type of lakes may form in mountain areas due to glacial action?ExpertLevel 39If the water area of a lake is shrinking rapidly what may be a possible geographical cause?ExpertLevel 39Which of the following statements about lakes is incorrect?ExpertLevel 39How should the relationship between wetlands and lakes be understood?ExpertLevel 39Which option gives the most effective direction for lake conservation?ExpertLevel 39Which lake is placed among the large coastal lagoon lakes of India?ExpertLevel 39Why is fishing included in the usefulness of lakes?ExpertLevel 39Under which condition is lake water more likely to remain fresh?ExpertLevel 39The basic formation of a tectonic lake is related to what?ExpertLevel 39