World & Physical Geography MCQs

Notes:
The Sun is nearly 150 million km away from the Earth. Such large distances are expressed in another unit known as light year.
Light year is the distance travelled by light in one year.
Speed of light is about 300,000 km per second. Thus, the distance of the Sun from the Earth may be said to be about 8 light minutes.

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Lithosphere refers to the portion of depth up to 200 km from the surface of the earth.
The crust and the uppermost part of the mantle are called lithosphere. Its thickness ranges from 10-200 km.

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Chukchi Sea is a marginal sea of the Arctic Ocean. It is bounded on the west by the Long Strait, off Wrangel Island, and in the east by Point Barrow, Alaska, beyond which lies the Beaufort Sea.

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Halley’s Comet is one of the most famous comet. It is a “periodic” comet. It returns to Earth’s vicinity about every 75 years and this makes it possible for a human to see it twice in his or her lifetime. The last time it was here was in 1986, and it is projected to return in 2061.

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Russia is the world’s largest producers of asbestos. It is followed by China. Kazakhstan is at the third place.

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The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden.

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Lake Voctoria is the largest tropical lake in the world. It is one of the great African lake.

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Kazakhstan is the world’s largest uranium producer. In 2022, Kazakhstan produced 21,227 metric tons of uranium, which accounted for 43% of the world’s uranium supply. Kazakhstan has been a major uranium producer for over 50 years.  Other top uranium producers include:

• Canada, which produced 7,351 metric tons of uranium in 2022
• Namibia, which produced 11% of the world’s uranium in 2022
• Uzbekistan, which produced about 3,300 metric tons of uranium in 2022

Kazakhstan has 12% of the world’s uranium deposits. The Chu-Sarysu basin in central Kazakhstan accounts for over half of the country’s known uranium resources.

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The Sargasso Sea is the only sea in the world with no coastline. It is a region in the gyre in the middle of the North Atlantic Ocean. It is well known for brown Sargassum seaweed and calm blue water.

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Indonesia is the largest archipelagic country in the world, extending 5,120 kilometres (3,181 mi) from east to west and 1,760 kilometres (1,094 mi) from north to south. According to a geospatial survey conducted between 2007 and 2010 by the National Mapping Agency, Indonesia has 13,466 islands, scattered over both sides of the equator, and with about 6,000 of them are inhabited.