World & Physical Geography MCQs

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Mars is known as the red planet because it looks red from Earth. The reddish color comes from high concentration of iron oxide compounds that is rust—in the rocks of the Martian surface.
Phobos and Deimos are the natural satellites of Mars.

Notes:
A Quadrant is the instrument used for measuring altitudes and angles in navigation and astronomy. A quadrant is an instrument that is used to measure angles up to 90°.

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Ossetia is an ethnolinguistic region located on both sides of the Greater Caucasus Mountains. It is inhabited by the Ossetians and the Ossetian language is part of the Eastern Iranian branch of the Indo-European languages family. It is a point of contention between Russia and Georgia.

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Anatolia, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the largest part of the territory of Turkey. Anatolia is bounded by the Black Sea to the north, the Mediterranean Sea to the south, the Aegean Sea to the west, and the borders of Armenia, Azerbaijan, and Iran to the east.

Notes:
Mongolia is the least densely populated country in Asia, with only two people per square kilometer. The average population density in Asia in 2020 was 1,018 people per square kilometer. Mongolia is also the world’s most sparsely populated country. The country has a cold climate due to its high altitudes and latitudes. Large parts of Mongolia are covered by mountains and deserts, leaving little arable land. As of 2016, Mongolia’s population was estimated to be 3,068,243.
The least densely populated country in Southeast Asia is Laos, with 32 people per square kilometer. The most densely populated country in Southeast Asia is Singapore, with 7,919 people per square kilometer.

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The New Horizons was launched by from Cape Canaveral Air Force Station to study the surface of the moon. It was the fastest man-made object ever launched from Earth.

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We all know that a minute of arc on the planet Earth is 1 nautical mile. 1 nautical mile is 1852 meters or 1.852 kilometers. To travel around the Earth at the equator, we would have to travel (360 * 60) 21,600 nautical miles, 24,857 miles or 40,003 kilometers.
The question says that the distance between point X and Y is 18520 kilometers , which means that they are 10000 nautical miles apart. So, if 21620=360°, 10000=166.5°. So correct option is C

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A hanging valley is elevated above another valley, with one end open to the valley below. There may be a cliff or steep formation where they meet. When the glaciers melt, the tributary troughs are left as hanging valleys high on the walls of the main glacial valley.

Notes:
In the given diagram of North America and South America
‘a’ marked river is Yukon
‘b’ marked river is Mackenzie
‘c’ marked river is St. Lawrence
‘d’ marked river is Orinoco
 

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The coral reef of Darwin Mounds comprises a big field of sand mounds. It is situated off the northwest coast of Scotland and they are found about 1000 metres below the surface of the North Atlantic Ocean.