Which option correctly matches a lake with its origin?
Correct answer: B
Lonar Lake is linked with a meteorite impact crater. For exams practice origin based matching.
View question detailsGeography
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.
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Hard · Level 40 · lonar lake,meteorite crater,lake origin
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- Chilika meteorite crater
- Lonar meteorite crater
- Sambhar glacial lake
- Gobind Sagar meander cut off
Hard · Level 40 · fish farming,water quality,lake pollution
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- Fish habitat and health will be affected
- Fish will always become infinite
- Need for water will end
- Silt will completely disappear
Hard · Level 40 · ramsar,wetland,biodiversity
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- Many lakes are important wetlands and biodiversity centres
- Ramsar is related only to road construction
- Lakes are always lifeless
- Ramsar only measures mountain height
Hard · Level 40 · plantation,lake shore,siltation
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- Vegetation binds soil and reduces erosion
- Plants stop the sea
- Plants immediately make the lake saline
- Vegetation makes the lake a paved plain
Hard · Level 40 · dal lake,tourism,economic use
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- Dal Lake tourism
- Loktak Lake desert salt
- Wular Lake iron smelting
- Chilika Lake coal mining
Hard · Level 40 · lake problems,pollution,overuse
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- When pollution encroachment and excessive withdrawal increase
- When the catchment is protected
- When cleanliness is maintained
- When use is regulated
Hard · Level 40 · lagoon,inland saline lake,sambhar
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- A lagoon can be a sea influenced coastal water body while an inland saline lake lies within land
- Both are always on mountain peaks
- Both form only by dams
- Both can never be saline
Hard · Level 40 · biodiversity,lake pollution,waste
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- Clean water conservation
- Entry of polluted water and solid waste
- Regulated fishing
- Plantation on shores
Hard · Level 40 · lake type,pulicat,incorrect match
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- Chilika coastal lagoon
- Sambhar saline lake
- Gobind Sagar artificial reservoir
- Pulicat glacial lake
Hard · Level 40 · lakes, flood absorption, encroachment, siltation, drainage, water storage
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- Encroachment and siltation
- Clean water and greater depth
- Catchment protection and plantation
- Regulated use and pollution prevention
Hard · Level 40 · loktak lake,northeast india,wetland
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- Loktak Lake
- Sambhar Lake
- Vembanad Lake
- Nainital Lake
Hard · Level 40 · lake conservation,water quality,water quantity
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- Dumping waste and excessive withdrawal
- Pollution control silt control and regulated water use
- Increasing encroachment and cutting shores
- Releasing wastewater directly
Hard · Level 40 · nutrients,eutrophication,runoff
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- Untreated domestic waste and agricultural runoff
- Clean mountain air
- Only clean rainwater
- Controlled plantation
Hard · Level 40 · wular lake,dal lake,jammu kashmir
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- Both are famous lakes linked with Jammu and Kashmir region
- Both are saline lakes of Rajasthan
- Both are lagoons of Odisha
- Both are Kerala backwaters
Hard · Level 40 · lake drying,water availability,livelihood
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- Water availability fishing and tourism may be affected
- Sea water will become completely fresh
- All mountains will disappear
- Sun heat will stop
Hard · Level 40 · sambhar,chilika,lake comparison
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- Sambhar is an inland saline lake and Chilika is a coastal lagoon
- Both are glacial lakes
- Sambhar is freshwater and Chilika is in a desert
- Both are artificial reservoirs
Hard · Level 40 · water balance,salinity,evaporation
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- Salinity and water level problem
- Glacier expansion
- Sea formation
- Soil turning into gold
Hard · Level 40 · sustainable fishing,lake ecosystem,water quality
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- Breeding areas and water quality remain protected
- Fish are caught without limit
- Waste is filled in the lake
- Oxygen ends in the water
Hard · Level 40 · sambhar lake,salt production,dry region
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- Sambhar Lake
- Dal Lake
- Wular Lake
- Loktak Lake
Hard · Level 40 · exam strategy,lakes,location,type
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- Because exams combine matching and reason based questions
- Because all lakes are in one place
- Because lakes have no problems
- Because lakes are fully covered by memorising names only
How will deterioration of lake water quality affect fish farming?
Correct answer: A
Polluted water harms fish and their habitat. For exams connect economic use with water quality.
View question detailsWhat is the correct reason for studying lakes in the context of Ramsar sites?
Correct answer: A
Ramsar importance is linked with wetland conservation and biodiversity. For exams connect lakes with conservation topics.
View question detailsHow does plantation on lake shores help reduce siltation?
Correct answer: A
Shore vegetation can reduce soil erosion. For exams consider plantation as a lake conservation measure.
View question detailsWhich option gives the most correct relation between a lake and economic use?
Correct answer: A
Dal Lake is famous for tourism and houseboats in Srinagar. For exams remember tourism among economic uses of lakes.
View question detailsUnder which condition can a lake become a problem despite being a water resource?
Correct answer: A
Excessive human pressure can reduce lake quality and capacity. For exams study both resource and crisis aspects.
View question detailsWhat is the most accurate difference between a coastal lagoon and an inland saline lake?
Correct answer: A
Chilika and Pulicat are lagoons while Sambhar is an inland saline lake. For exams observe both location and water nature.
View question detailsWhat can be the most direct human made cause of biodiversity decline in lakes?
Correct answer: B
Polluted water and waste harm aquatic organisms. For exams connect biodiversity conservation with pollution control.
View question detailsWhich option incorrectly matches a lake with its type?
Correct answer: D
Pulicat is not a glacial lake but a coastal lagoon. For exams match lake types through examples.
View question detailsWhat can be a combined reason for reduction of flood absorption capacity in lakes?
Correct answer: A
Encroachment reduces the spread and storage area of a lake, while siltation decreases its depth and water-holding volume. Together, they leave less space for storing excess rainwater during floods. Clean water and greater depth would improve, not reduce, this capacity. Exam tip: For flood buffering, remember that both the area and depth of a lake matter.
View question detailsWhich lake is appropriate to identify as a unique wetland of Northeast India?
Correct answer: A
Loktak Lake is a special wetland of Manipur and is famous for phumdis. For exams remember it among Northeast lakes.
View question detailsWhich combined measure is most correct to protect both water quality and water quantity in lakes?
Correct answer: B
Pollution control protects quality while silt control and regulated use protect quantity. For exams study conservation as an integrated measure.
View question detailsEntry of excess nutrients into lakes can increase from which source?
Correct answer: A
Domestic waste and fertilizer runoff can increase nutrients. For exams remember sources of eutrophication.
View question detailsWhat is the main exam basis for studying Wular and Dal lakes together?
Correct answer: A
Wular and Dal are major lakes linked with Jammu and Kashmir region. For exams practice regional matching.
View question detailsWhat practical effect can drying of lakes have on local society?
Correct answer: A
Drying of lakes can affect water resources and local livelihoods. For exams connect lakes with society and economy.
View question detailsWhat is the main difference between Sambhar Lake and Chilika Lake?
Correct answer: A
Sambhar is a saline lake of Rajasthan while Chilika is a coastal lagoon of Odisha. For exams remember differences through examples.
View question detailsWhich problem can increase when water inflow decreases and evaporation increases in lakes?
Correct answer: A
Low inflow and high evaporation can shrink a lake and increase salinity. For exams connect water balance with salinity.
View question detailsWhich condition is most necessary for sustainable fishing in lakes?
Correct answer: A
Sustainable fishing needs protection of habitat and water quality. For exams connect economic use with conservation.
View question detailsWhich lake is correctly linked with both salt production and a dry region?
Correct answer: A
Sambhar Lake in Rajasthan's dry region is linked with saline water and salt production. For exams treat it as a major example of a saline lake.
View question detailsWhy should location type and problem be studied together while studying lakes?
Correct answer: A
Questions on lakes combine location type use and conservation. For exams prepare through examples.
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