World & Physical Geography MCQs

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Geo-centric theory of solar system was proposed by Ptolemy 2000 years ago. This theory states that all celestial objects, stars, the sun and the planets, all revolved around the earth.

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Nebular theory was formulated by Laplace which describes the formation of the Sun and solar system. Laplace along with his colleague John Michel, introduced the idea of a “dark star,” which later came to be called as black hole.

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Antwerp, located in Belgium, is globally recognized as the diamond trade’s epicenter. This city, rich in art and history, houses about 84 percent of the world’s rough diamonds and 50 percent of cut diamonds. It has over 1,500 firms dealing specifically in diamonds, making it the world’s unrivaled diamond trading hub. The Antwerp province’s diamond district also houses four of the world’s 30 diamond bourses, avenues where legally certified diamonds are traded.

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Aral Sea, located in Central Asia, was once one of the world’s largest inland seas. However, due to extensive irrigation projects diverting water from its two main sources, the Amu Darya and Syr Darya rivers, for agricultural purposes, the Aral Sea has significantly shrunk over the decades. This diversion of water has resulted in severe environmental and ecological problems, including the shrinking of the sea’s surface area and the creation of a large desert-like region known as the Aral Sea’s “desertification.”

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The correct answer is the Proton Proton Chain Reaction. This process occurs in stars like the Sun, where hydrogen nuclei (protons) fuse to form helium, releasing energy. It is the dominant energy production mechanism in stars with masses similar to or smaller than the Sun. The CNO cycle, on the other hand, is more prevalent in larger stars. The proton-proton chain reaction is responsible for about 99% of the Sun’s energy output.

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Błędów Desert is desert area of sands between Błędów and the villages of Chechło and Klucze in Poland. It is in Europe.The area lies mainly on the Silesian Highlands in the Lesser Poland Voivodeship.

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An Astronomical Unit (AU) is the average distance between Earth and the Sun. 1 Astronomical unit (AU) is a unit of length equal to 150 Million Kms.

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Ganymede is a satellite of Jupiter. It is the largest satellite of the Solar System’s moons. It is the ninth-largest object in the Solar System.

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The Viking program consisted of a pair of American space probes sent to Mars, Viking 1 and Viking 2. They were launched in 1975. Each spacecraft was composed of two main parts: an orbiter designed to photograph the surface of Mars from orbit, and a lander designed to study the planet from the surface.

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High tides and low tides are caused by the moon. The moon’s gravitational pull generates something called the tidal force. The tidal force causes Earth and its water to bulge out on the side closest to the moon and the side farthest from the moon. When you’re not in one of the bulges, you experience a low tide.