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Subjects

Geography

Lakes

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.

Hard · Level 2 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Clean inflow and shore vegetation
  2. Conservation in catchment area
  3. Entry of wastewater chemicals and excess nutrients
  4. Ban on plastic
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  1. It will cover the water surface and affect light and oxygen conditions
  2. The lake will immediately become fresh
  3. The river source will change
  4. Salinity will always become zero
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  1. Chilika and Pulicat
  2. Wular and Nainital
  3. Sambhar and Bhojtal
  4. Loktak and Bhimtal
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  1. Change in their size and water volume
  2. Their always changing into saltwater
  3. Their reaching the seacoast
  4. Their becoming desert dunes
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  1. Because lakes also support water supply irrigation fisheries and ecology besides tourism
  2. Because lakes are never useful in tourism
  3. Because lakes contain no water
  4. Because lakes are only map symbols
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  1. Salts do not leave because there is no outlet
  2. Snowfall occurs all the time
  3. The sea always enters the lake
  4. Fish eat all the salts
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  1. It reduces nutrient and chemical pollution in the lake
  2. It turns the lake into a desert
  3. It makes all water saline
  4. It forms meanders
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  1. Excessive water withdrawal and low recharge
  2. Solar eclipse and lunar eclipse
  3. Volcanic smoke and meteor
  4. Sea ice and mountain colour
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  1. Chilika and Odisha
  2. Loktak and Manipur
  3. Vembanad and Kerala
  4. Sambhar and Assam
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  1. They can slowly release stored water
  2. They turn rivers into soil
  3. They always stop rainfall
  4. They dry the sea
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  1. Water may be more still in a lake while flow is dominant in a river
  2. A lake always flows fast and a river remains still
  3. Neither contains water
  4. A river is always surrounded by land
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  1. Chilika Lake
  2. Loktak Lake
  3. Sambhar Lake
  4. Wular Lake
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  1. Himalayan glacial lake
  2. Inland saline lake of Rajasthan
  3. Coastal lake of the eastern coast
  4. Volcanic lake of central India
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  1. When lake water percolates into the ground and reaches aquifers
  2. When lake water turns into stone
  3. When the lake always remains dry
  4. When there is no catchment area
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  1. Pollutants can increase along the food chain
  2. Water always becomes clean
  3. All organisms immediately disappear
  4. The river course gets blocked
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  1. Wular and Kerala backwater
  2. Sambhar and salt production
  3. Dal and floating phumdis
  4. Vembanad and Rajasthan desert
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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
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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
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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
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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
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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
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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
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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
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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
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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

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