World & Physical Geography MCQs

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Hoyle’s concept of steady state is opposite to Big Bang theory. It considered the universe to be roughly the same at any point of time

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The word ‘planet’ comes from the ancient Greek ἀστήρ πλανήτης (astēr planētēs), meaning “wandering star”. The large number of stars observed in the heavens were classified into fixed stars and wandering stars. Fixed stars were those with respect to which the movement of the celestial bodies were measured. Wandering stars were those whose relative distances with respect to the fixed stars keep changing. Mars, Venus, Jupiter, Mercury and Saturn belonged to the latter category. Among these, Jupiter was known as Bright Wandering Star.

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A Sidereal Day is the time required by the Earth to rotate 360 degrees and make a star return to the same exact position. This is approximately 23 hours 56 minutes, slightly less than the 24 hours of a Solar Day. The specifics of Earth’s rotation lead to the slightly different timestamps of solar and sidereal days.

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The Geysers Geothermal Complex is located in the United States, north of San Francisco in California. It is the world’s largest geothermal power plant, with a capacity of 1,517 megawatts. The Geysers is made up of 22 power plants spread over several kilometers.
The Geysers has been producing electricity since 1960. Geothermal power plants are a renewable source of energy that can provide clean and reliable electricity with a low environmental impact. They are also relatively inexpensive to operate and maintain.
Geothermal resources are most accessible in the western states, from Colorado and New Mexico up to Utah, Nevada, Idaho and Oregon.

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Approximately 97% of the Earth’s water is in the form of oceans. The remaining 3% is found in the form of fresh water, which is distributed among the Earth’s lakes, rivers, and underground aquifers.

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Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral particles or rock fragments. Most sandstone is composed of quartz or feldspar because they are the most resistant minerals to weathering processes at the Earth’s surface, as seen in Bowen’s reaction series.

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Because of the lack of an atmosphere, sunlight isn’t scattered and so whether it’s daytime or night time on the Moon, the sky appears black.

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The Labrador Current is a cold current in the North Atlantic Ocean which flows from the Arctic Ocean south along the coast of Labrador and passes around Newfoundland, continuing south along the east coast of Nova Scotia. It is a continuation of the West Greenland Current and the Baffin Island Current.

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The Orion arm is the minor spiral arm of the Milky Way Galaxy.  Our solar system is located in the Orion arm.

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Due to frequent dust storms, Mars is also called as “the Pigpen Planet” because it is the dustiest place in the solar system.