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Test: The Earth In The Solar System - UPSC MCQ


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20 Questions MCQ Test Geography for UPSC CSE - Test: The Earth In The Solar System

Test: The Earth In The Solar System for UPSC 2024 is part of Geography for UPSC CSE preparation. The Test: The Earth In The Solar System questions and answers have been prepared according to the UPSC exam syllabus.The Test: The Earth In The Solar System MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Earth In The Solar System below.
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Test: The Earth In The Solar System - Question 1

Which celestial body is known for always indicating the north direction?

Detailed Solution for Test: The Earth In The Solar System - Question 1
The Pole Star, also known as the North Star, remains in a fixed position in the sky, making it a reliable indicator of the north direction. It can be located with the help of the Saptarishi constellation, by drawing an imaginary line from its pointer stars.
Test: The Earth In The Solar System - Question 2

Which celestial bodies are referred to as 'wanderers' in Greek?

Detailed Solution for Test: The Earth In The Solar System - Question 2
The word 'planet' comes from the Greek word “Planetai,” which means ‘wanderers’. This name is given because planets move around the sun in their orbits, unlike stars which appear fixed in the night sky.
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Test: The Earth In The Solar System - Question 3

What phenomenon is observed when small pieces of rocks burn up upon entering the Earth's atmosphere?

Detailed Solution for Test: The Earth In The Solar System - Question 3
When meteoroids enter the Earth's atmosphere at high speed and burn up due to friction with the air, they create a flash of light known as a meteor or shooting star. Some meteors survive the atmospheric entry and are then called meteorites.
Test: The Earth In The Solar System - Question 4
What is the term for a night when the moon is not visible at all in the sky?
Detailed Solution for Test: The Earth In The Solar System - Question 4
A New Moon Night, or Amavasya, occurs about fifteen days after a Full Moon Night. On this night, the moon is not visible from the Earth because it is positioned between the Earth and the Sun.
Test: The Earth In The Solar System - Question 5
Which planet is known as the 'Earth's-twin' due to its similar size and shape?
Detailed Solution for Test: The Earth In The Solar System - Question 5
Venus is called 'Earth’s-twin' because its size and shape are very similar to those of the Earth. Despite these similarities, the conditions on Venus are extremely different from those on Earth.
Test: The Earth In The Solar System - Question 6
Which of the following is the largest planet in our solar system?
Detailed Solution for Test: The Earth In The Solar System - Question 6
Jupiter is the largest planet in our solar system. It has a diameter of about 142,984 km, which is significantly larger than any other planet.
Test: The Earth In The Solar System - Question 7
How often can we observe a Full Moon Night?
Detailed Solution for Test: The Earth In The Solar System - Question 7
A Full Moon Night, or Poornima, can be observed once a month. This occurs when the moon is fully illuminated by the sun's light, appearing as a complete sphere.
Test: The Earth In The Solar System - Question 8
What is the term used for the elliptical path in which a planet revolves around the sun?
Detailed Solution for Test: The Earth In The Solar System - Question 8
An orbit is the particular and definite elliptical path in which a planet or satellite always remains while revolving around a star or planet.
Test: The Earth In The Solar System - Question 9
What is the shape of the Earth commonly referred to as?
Detailed Solution for Test: The Earth In The Solar System - Question 9
The shape of the Earth is referred to as a geoid. It is almost spherical but slightly flattened at the poles, giving it a unique earth-like shape.
Test: The Earth In The Solar System - Question 10
What celestial bodies are found between the orbits of Mars and Jupiter?
Detailed Solution for Test: The Earth In The Solar System - Question 10
Asteroids are tiny celestial bodies found between the orbits of Mars and Jupiter, forming the asteroid belt. Scientists believe they are remnants of a planet that exploded many years ago.
Test: The Earth In The Solar System - Question 11
Which planet takes the shortest time to complete one orbit around the sun?
Detailed Solution for Test: The Earth In The Solar System - Question 11
Mercury, being the closest planet to the sun, takes only about 88 days to complete one orbit around the sun, which is the shortest time compared to other planets.
Test: The Earth In The Solar System - Question 12
What term describes the smallest celestial bodies that move around the sun and can cause flashes of light upon entering the Earth's atmosphere?
Detailed Solution for Test: The Earth In The Solar System - Question 12
Meteoroids are small pieces of rock or metal that move around the sun. When they enter the Earth's atmosphere and burn up, they cause flashes of light known as meteors or shooting stars.
Test: The Earth In The Solar System - Question 13
Which constellation is known for having a pattern that resembles a big bear?
Detailed Solution for Test: The Earth In The Solar System - Question 13
Ursa Major, also known as the Big Bear, is a constellation that can be easily recognized by its pattern of stars resembling a large bear. It is one of the most famous constellations in the night sky.
Test: The Earth In The Solar System - Question 14

What is the name given to the white glowing path across the sky that is actually a cluster of millions of stars?

Detailed Solution for Test: The Earth In The Solar System - Question 14

The Milky Way Galaxy is a broad, white glowing band seen across the sky, consisting of millions of stars. Our solar system is part of this galaxy.

Test: The Earth In The Solar System - Question 15
What is the main source of heat and light for the solar system?
Detailed Solution for Test: The Earth In The Solar System - Question 15
The Sun is the primary source of heat and light for the entire solar system. Despite its immense distance from Earth, it provides the necessary energy to sustain life on our planet.
Test: The Earth In The Solar System - Question 16
What term describes the planet Mars in terms of its color?
Detailed Solution for Test: The Earth In The Solar System - Question 16
Mars is often called the Red Planet due to its reddish appearance, which is caused by iron oxide or rust on its surface.
Test: The Earth In The Solar System - Question 17
How far is the Sun from the Earth?
Detailed Solution for Test: The Earth In The Solar System - Question 17
The Sun is approximately 150 million kilometers away from the Earth. This vast distance is one of the reasons we do not feel its immense heat directly.
Test: The Earth In The Solar System - Question 18
Which celestial body is a natural satellite of the Earth?
Detailed Solution for Test: The Earth In The Solar System - Question 18
The Moon is the Earth's natural satellite. It orbits around the Earth and is the closest celestial body to our planet, influencing various phenomena such as tides.
Test: The Earth In The Solar System - Question 19
What is the primary component of stars?
Detailed Solution for Test: The Earth In The Solar System - Question 19
Stars are primarily composed of gases, mainly hydrogen and helium. These gases undergo nuclear fusion, producing immense amounts of heat and light.
Test: The Earth In The Solar System - Question 20
What are meteoroids that survive their journey through Earth's atmosphere and land on the ground called?
Detailed Solution for Test: The Earth In The Solar System - Question 20
When meteoroids survive their journey through Earth's atmosphere and land on the ground, they are called meteorites. These space rocks provide valuable information about the composition of our solar system.
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