UPSC Prelims Marathon 21 July – Miscellaneous Continents of the World – 2026

Which of the following statements with regard to the Antarctic continent is/are correct?
1.It stands as the coldest, driest, and windiest continent, holding approximately 90% of the world’s ice reserves.
2.The Onyx River functions as the longest sub-glacial river system on the continent, emptying directly into the landlocked Lake Vostok.
3.Astrobiological research conducted in Lake Vostok aims to understand environmental models applicable to Jupiter’s icy moon, Europa.
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Which of the following statements with regard to the political geography of North America is/are correct?
1.The 49th Parallel acts as the straight international land boundary separating the mainland United States from Canada.
2.The Arctic Circle passes through the sovereign territories of the United States (Alaska), Canada, and Iceland.
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Which of the following statements with regard to the San Andreas Fault is/are correct?
1.It is structurally classified as a continental transform fault line that extends approximately 1,200 kilometers through California.
2.The fault delineates the active right-lateral strike-slip tectonic boundary between the Pacific Plate and the North American Plate.
3.Vertically, the fault line terminates at its southernmost end within the waters of Hudson Bay.
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Which of the following statements with regard to North American river systems is/are correct?
1.The Yukon River flows through Canada and Alaska, gaining historical economic importance due to the discovery of placer gold deposits along its basin.
2.The Mackenzie River drains northward into the Beaufort Sea and is the longest river system flowing into the Arctic Ocean from the North American continent.
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Consider the following statements regarding the St. Lawrence and Mississippi river networks:
1.The St. Lawrence River flows out of Lake Ontario, forming a segment of the international boundary between the United States and Canada.
2.The Mississippi River is the largest drainage system on the North American continent, outranking the catchment basin of Hudson Bay.
3.The Mississippi River terminates in the Gulf of Mexico by building a classic, bird-foot shaped depositional delta.
Which of the statements given above are correct?

Which of the following statements with regard to western North American river boundaries is/are correct?
1.The Colorado River carves through the Colorado Plateau to form the Grand Canyon before emptying into Lake Mead along the Arizona-Nevada border.
2.The Rio Grande serves as a fixed, unshifting international boundary between the United States and Mexico, free from bilateral territorial disputes.
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Which of the following statements regarding the North American Great Lakes are correct?
1.Lake Superior is geologically classified as the largest single freshwater lake by surface area in the world.
2.The international boundary line between Canada and the United States divides all five Great Lakes into equal sovereign shares.
3.Lake Michigan holds the geographical distinction of being the only Great Lake situated entirely within the borders of the United States.
4.The Great Lakes Waterway bypasses structural bottlenecks to connect these inland basins directly to the Atlantic Ocean via the Amazon basin.
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