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Subjects

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.

TOPIC PRACTICE

Quiz this set

Up to 20 questions from this page. Select your focus, then start.

20 questions

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Hard · Level 39 · eutrophication,algae,water quality
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  1. Infinite storage of clean water
  2. Mountain formation
  3. Excessive algal growth and decline in water quality
  4. Drying of the sea
Hard · Level 39 · lonar lake,meteorite crater,maharashtra
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  1. Chilika Lake
  2. Vembanad Lake
  3. Sambhar Lake
  4. Lonar Lake
Hard · Level 39 · kolleru lake,andhra pradesh,delta
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  1. Between Krishna and Godavari deltas in Andhra Pradesh
  2. In the middle of the Thar Desert in Rajasthan
  3. On a glacier in Kashmir
  4. On a Western Ghats peak in Kerala
Hard · Level 39 · vembanad lake,kerala,backwater
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  1. Inland salt plain of Rajasthan
  2. Backwater region of Kerala
  3. Ice valley of Jammu and Kashmir
  4. Meteorite crater of central India
Hard · Level 39 · lake water level,rainfall,evaporation
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  1. Change in the size of the Sun
  2. Change in age of mountains
  3. Changes in rainfall evaporation and inflow
  4. Change in colour of the sea
Hard · Level 39 · catchment,deforestation,siltation
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  1. Silt and surface runoff may increase
  2. The lake will always become deeper
  3. Water pollution will automatically end
  4. The lake will turn into a sea
Hard · Level 39 · lake pollution,siltation,water storage
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  1. Both water quality and water storage may decrease
  2. Both depth and purity will become infinite
  3. The lake will immediately become a glacier
  4. Sea waves will be locked in the lake
Hard · Level 39 · freshwater lake,population pressure,encroachment
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  1. Pollution and encroachment of drinking water source
  2. Immediate formation of the Himalayas
  3. Sea becoming fresh
  4. River flowing backward
Hard · Level 39 · glacial lakes,lake formation,himalaya
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  1. Water filling depressions or barriers made by glaciers
  2. Salt deposition by sea tides
  3. Stopping of wind in a desert
  4. Breaking of dam concrete
Hard · Level 39 · wetland,lakes,biodiversity
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  1. They are only dry land
  2. They are important habitats for biodiversity and the water cycle
  3. They always remain without organisms
  4. They exist only for road construction
Hard · Level 39 · lake tourism,pollution,conservation
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  1. When tourism and fishing are controlled
  2. When water is kept clean
  3. When excessive tourism increases waste and pollution
  4. When plantation is done on shores
Hard · Level 39 · lagoon,inland saline lake,sambhar,chilika
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  1. A lagoon may be sea influenced on a coast while an inland saline lake lies within land
  2. Both form only from glaciers
  3. An inland saline lake is always a sea
  4. A lagoon never has water
Hard · Level 39 · catchment protection,lake conservation,silt control
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  1. Because it can reduce silt and pollution entering the lake
  2. Because it immediately makes lake water saline
  3. Because it makes every lake artificial
  4. Because it stops sea tides
Hard · Level 39 · vembanad,pulicat,coastal lakes
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  1. Both are linked with coastal water bodies of South India
  2. Both are inland saline lakes of Rajasthan
  3. Both are Himalayan glacial lakes
  4. Both are craters of the Narmada river
Hard · Level 39 · fish farming,sustainability,lake ecosystem
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  1. Fish are caught excessively without limit
  2. Water is polluted and oxygen deficient
  3. Water quality and fish breeding areas remain protected
  4. The lake is filled with waste
Hard · Level 39 · encroachment,lake area,flood control
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  1. Natural spread and flood absorption capacity of the lake may reduce
  2. Lake water will always become fresh
  3. Glaciers will form in the lake
  4. Lake area will become infinite
Hard · Level 39 · dal lake,tourism,conservation
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  1. Because tourism gives income but pollution control is also necessary
  2. Because it is only a desert salt lake
  3. Because there is no human activity in it
  4. Because it is a deep part of the sea
Hard · Level 39 · lake formation,lonar lake,meteorite
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  1. Meteorite impact Lonar Lake
  2. Himalayan glacier Sambhar Lake
  3. Dam construction Chilika Lake
  4. Meander cut off Wular Lake
Hard · Level 39 · local climate,lakes,temperature moderation
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  1. Water absorbs and releases heat slowly
  2. Stone stops air
  3. Sand makes rainfall
  4. Smoke makes rivers
Hard · Level 39 · salinity,evaporation,closed drainage
View options
  1. Evaporation reduces water and salts remain behind
  2. Glaciers add salt every day
  3. Volcanoes always make sugar
  4. Sea fish make water fresh

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