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#1
By TheQuizWire
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Medium
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Fact Checked
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23 Jan 2026
The exceptional salinity of which major lake is primarily due to being part of an endorheic basin?
💡 Explanation:The Dead Sea is a terminal (endorheic) lake, meaning water flows in but does not flow out to an external body like an ocean. The only way water leaves is through evaporation, which concentrates the dissolved salts and minerals, resulting in its high salinity. The other options are freshwater lakes with natural outflows.
#2
By TheQuizWire
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Easy
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Fact Checked
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18 Jan 2026
What characteristic primarily explains the continental shelf’s high marine productivity and economic value?
💡 Explanation:The continental shelf is the shallowest part of the ocean floor, which allows sufficient sunlight to penetrate the water column. This access to sunlight is crucial for photosynthesis by phytoplankton and marine plants, which forms the base of the food web and drives high primary productivity in the neritic zone. This biological richness results in significant economic value, particularly for fishing and resource extraction.
#3
By TheQuizWire
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Medium
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Fact Checked
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17 Jan 2026
What primary geographical characteristic leads to the Caspian Sea’s classification as the world’s largest *lake*?
💡 Explanation:The Caspian Sea is geographically classified as the world's largest *lake* because it is an endorheic basin, meaning it lacks a natural surface outlet connecting its waters to the global ocean. This absence of a continuous flow to the ocean is the fundamental criterion distinguishing a lake from a sea in this context.
#4
By TheQuizWire
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Easy
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Fact Checked
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04 Jan 2026
A shared river drainage basin primarily necessitates which among the riparian states?
💡 Explanation:A river drainage basin shared by multiple countries (riparian states) necessitates cooperative agreements for the equitable and sustainable management of water resources. This includes considerations for water allocation, quality, flood control, and infrastructure (like dams and irrigation), which are critical to preventing conflict and ensuring resource security. This requirement is a fundamental aspect of 'hydropolitics' and international geography.
#5
By TheQuizWire
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Hard
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Fact Checked
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15 Dec 2025
What is the primary reason the Dead Sea exhibits such high salinity and has no marine life?
💡 Explanation:The Dead Sea is an endorheic basin, meaning it is a closed lake with no natural outlet to the ocean. Water primarily leaves through evaporation, which is extremely high due to the arid climate. This process continuously concentrates the dissolved minerals and salts left behind in the basin, leading to its hyper-salinity, which prevents the survival of marine life.
#6
By TheQuizWire
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Medium
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14 Nov 2025
The North American Great Lakes hold what global distinction?
💡 Explanation:The Great Lakes contain the largest surface freshwater system on Earth by area.
#7
By TheQuizWire
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Medium
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06 Nov 2025
Which body of water, located in the Jordan Rift Valley between Israel and Jordan, holds the distinction of being the lowest elevation point on the Earth’s surface on land?
💡 Explanation:The Dead Sea, which is technically a hyper-saline lake, has shores and a surface situated more than 400 meters (1,300 feet) below sea level, making it the lowest land elevation on Earth.
#8
By TheQuizWire
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Medium
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29 Oct 2025
Which river system has the largest drainage basin and water discharge globally?
💡 Explanation:The Amazon River has the largest drainage basin and discharges the greatest volume of water into the ocean.
#9
By TheQuizWire
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Medium
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27 Oct 2025
What approximate percentage of all the water on Earth, including oceans, ice caps, and groundwater, is contained within the oceans and seas, making it saline (saltwater)?
💡 Explanation:About 97% of the water on Earth is saline, found predominantly in the oceans. Only about 3% is freshwater, most of which is locked up in glaciers and ice caps.
#10
By TheQuizWire
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Medium
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25 Oct 2025
Which is the largest freshwater lake by surface area?
💡 Explanation:Lake Superior is the world's largest freshwater lake by surface area.
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