World & Physical Geography MCQs

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The size, mass & density of Venus is very close to that of earth. Venus is the second planet from the Sun. It is the second-brightest natural object in the night sky after the Moon.

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Ethiopia was in the past known as Abyssinia. The switch to the name Ethiopia happened around the 4th century during the reign of King Ezana, who adopted the name as part of his conversion efforts to Christianity. Historical records suggest that the term ‘Ethiopia’ was derived from the Greek term ‘Aithiops’, meaning ‘burnt face’ or ‘burnt complexion’ – a clear reference to the physical appearance of the country’s inhabitants.

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The Acasta Gneiss is located in the Northwest Territories of Canada. The rock is exposed on an island about 300 kilometers north of Yellowknife. The Acasta Gneiss is one of the oldest known intact crustal fragments on Earth. The rock was metamorphosed between 3.58 and 4.031 billion years ago.  The Acasta Gneiss was first described in 1989. It was discovered during fieldwork in 1983 by Geological Survey of Canada geologist Janet King.  Gneiss is a type of rock that has been metamorphosed by intense heat and pressure at depth in Earth’s crust. The original, unmetamorphosed rock was a granite, an intrusive igneous rock.

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The aurora borealis is a display of natural light in the sky near the North Pole. It was named after the Roman goddess of the dawn, Aurora, and the Greek name for the north wind, Boreas, by Pierre Gassendi in 1621. It is a result of photon emissions in the earth’s upper atmosphere from ionized nitrogen atoms regaining an electron, and oxygen and nitrogen atoms returning from an excited state to a low-energy state.

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Pulsar emit radio (electromagnetic) signals at regular interval of time. Pulsars are a kind of neutron stars and the emission is detectable when the source of beam of the electromagnetic waves is towards Earth. This is known as Light house effect and is gives a pulsed nature to pulsars.

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Neptune has five rings: Galle, LeVerrier, Lassell, Arago, and Adams. Its rings were named after the astronomers who made an important discovery regarding the planet.

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The Coral Triangle is also called the “Amazon of the Seas”. It is a triangular area of the tropical marine waters of Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands and Timor-Leste. It is a global centre of marine Biodiversity.

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Timor Island is located at the southern end of Maritime Southeast Asia and at the north of the Timor Sea. The Island of Timor is divided between East Timor in the east and Indonesia in the western part, which is also called West Timor.

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F.Hoyle and Lyttleton proposed the nova hypothesis theory, explaining that the solar system has originated because of the explosion of a supernova.

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Pioneer 10 was the first spacecraft to make the closest approach to the planet Jupiter in 1973.