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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 38 · salinity,irrigation,lake water
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  1. When salinity is very high
  2. When water is clean
  3. When water quantity is sufficient
  4. When outflow is regulated
Hard · Level 38 · sambhar,salt production,lake feature
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  1. Wular and Kerala backwater
  2. Sambhar and salt production
  3. Dal and floating phumdis
  4. Vembanad and Rajasthan desert
Hard · Level 38 · thermal stratification,lake water,temperature
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  1. Arrangement of water into layers of different temperatures
  2. Water turning into rock
  3. Lake becoming sea
  4. Salts always disappearing
Hard · Level 38 · water quality,human health,waterborne diseases
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  1. Polluted water can increase the risk of waterborne diseases
  2. Polluted water always becomes medicine
  3. Water quality has no relation with humans
  4. Saline water always removes diseases
Hard · Level 38 · pollution load,self purification,lake capacity
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  1. When pollution load exceeds its tolerance capacity
  2. When clean rainwater enters
  3. When shore plants are protected
  4. When wastewater is treated
Hard · Level 38 · soil conservation,catchment,lake life
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  1. Sediment flow can decrease and the lake's life can increase
  2. The lake will immediately disappear
  3. Water will always become saline
  4. Every river will flow backward
Hard · Level 38 · water balance,inflow,outflow
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  1. Balance of inflow evaporation outflow and use
  2. Size of Sun and Moon
  3. Ratio of rock and fire
  4. Colour of air and smoke
Hard · Level 38 · biodiversity decline,water quality,habitat loss
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  1. Water quality habitat and pollution sources
  2. Distance of the Sun
  3. Average depth of oceans
  4. Temperature of the Moon
Hard · Level 38 · sustainable use,lake conservation,ecology
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  1. Using water while protecting ecology and recharge
  2. Taking out all lake water immediately
  3. Dumping waste to expand area
  4. Increasing only tourism and ignoring conservation
Hard · Level 38 · importance of lakes,geography,drainage
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  1. They are linked with water resources ecology climate livelihood and map study
  2. They exist only for decoration
  3. They are only sources of saline water
  4. They are never related to drainage
Hard · Level 39 · lakes,flow regulation,water storage
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  1. When it stores extra water and releases it slowly
  2. When it closes the river source
  3. When it dries the sea
  4. When it turns a mountain into a plain
Hard · Level 39 · sambhar lake,saline lake,rajasthan
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  1. It is formed by a Himalayan glacier
  2. It is a saline lake located in the dry inland region of Rajasthan
  3. It is a lagoon on the Odisha coast
  4. It is a reservoir of Bhakra Dam
Hard · Level 39 · oxbow lake,meander,river plains
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  1. Complete conversion of a river into a glacier
  2. Formation of a river delta in the sea
  3. A river meander being cut off from the main channel
  4. Freezing of a river on a mountain peak
Hard · Level 39 · chilika lake,lagoon,odisha
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  1. Because it produces salt in the Thar Desert
  2. Because it is a purely glacial mountain lake
  3. Because it is a completely artificial reservoir
  4. Because it is a coastal water body partly connected with the sea
Hard · Level 39 · wular lake,freshwater,jammu and kashmir
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  1. Freshwater lake Jammu and Kashmir
  2. Saltwater lake Rajasthan
  3. Coastal lagoon Tamil Nadu
  4. Artificial reservoir Himachal Pradesh
Hard · Level 39 · siltation,lake depth,conservation
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  1. The lake depth and water holding capacity decrease
  2. The lake immediately becomes an ocean
  3. Glaciers start forming in the lake
  4. Lake water always becomes mineral oil
Hard · Level 39 · loktak lake,phumdi,wetland
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  1. Completely volcanic origin
  2. Marine delta formation
  3. Floating vegetation and unique wetland ecology
  4. Desert salt deposition
Hard · Level 39 · gobind sagar,artificial lake,reservoir
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  1. Because it formed from a sea lagoon
  2. Because it formed by river meander cut off
  3. Because it is a meteorite crater
  4. Because it is a reservoir lake linked with Bhakra Nangal Dam
Hard · Level 39 · lagoon,brackish water,coastal lake
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  1. Because it can be influenced by both seawater and river or rainwater
  2. Because it exists only under a glacier
  3. Because it never has marine influence
  4. Because it is always filled with desert sand
Hard · Level 39 · pulicat lake,coastal lagoon,eastern coast
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  1. Glacial lake
  2. Coastal lagoon
  3. Desert saline lake
  4. Artificial dam reservoir

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