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Test: The Earth In The Solar System - UPSC MCQ


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10 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

How many planets are there in our solar system?

Detailed Solution for Test: The Earth In The Solar System - Question 1

There are eight planets in the solar system:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet.

Test: The Earth In The Solar System - Question 2

The planet known as the Earth twin is________.

Detailed Solution for Test: The Earth In The Solar System - Question 2

The Earth and Venus do often get called planetary twins because:

  • They are very close to being the same mass.
  • Both are rocky planets, therefore they have effectively the same density and resulting very close resemblance of physical size.
  • They have significant atmospheres surrounded their surfaces.
Test: The Earth In The Solar System - Question 3

Meteoroids are made up of

Detailed Solution for Test: The Earth In The Solar System - Question 3

Meteoroids are small celestial bodies or particles in space that are significantly smaller than asteroids. They are composed of various materials, including rocks, metals, and dust. When a meteoroid enters the Earth's atmosphere, it is referred to as a meteor. If the meteoroid survives its fiery passage through the atmosphere and lands on Earth, it is then called a meteorite.

Test: The Earth In The Solar System - Question 4

Why is the earth called as Blue Planet?

Detailed Solution for Test: The Earth In The Solar System - Question 4

Earth has been called the "Blue Planet" due to the abundant water on its surface i.e. two-third of its surface.
Only 2.5–2.75% is freshwater of which 1.75–2.00% is Frozen in glaciers and ice caps and the rest is available for human use and is available as ground freshwater.
Planet Earth was blue long before we knew | New Scientist

Test: The Earth In The Solar System - Question 5

What is called a cluster of millions of stars, shining white in the starry sky?

Detailed Solution for Test: The Earth In The Solar System - Question 5

A cluster of millions or billions of stars, along with various other celestial objects like planets, interstellar gas, and dust, is called a galaxy. The Milky Way is the name of our own galaxy, and it contains a vast number of stars, including our sun. When we look at the night sky and see a band of light, we are seeing a portion of the Milky Way.

 

Test: The Earth In The Solar System - Question 6

What makes the universe?

Detailed Solution for Test: The Earth In The Solar System - Question 6

The universe is an immense expanse that includes everything that exists — all matter, energy, planets, stars, galaxies, and even the fabric of space and time. Galaxies are large systems that contain stars, planets, and various cosmic entities. The universe is made up of countless galaxies, and each galaxy can contain billions or even trillions of stars. So, the vast collection of millions of galaxies collectively makes up the universe.

Test: The Earth In The Solar System - Question 7

Asteroids are found between the orbit of______.

Detailed Solution for Test: The Earth In The Solar System - Question 7

Early in the history of the solar system, the gravity of newly formed Jupiter brought an end to the formation of planetary bodies in this region and caused the small bodies to collide with one another, fragmenting them into the asteroids we observe today. They lie between Mars and Jupiter.

Asteroids are mainly found between the orbits of ______. Fill in the blanks  with

Test: The Earth In The Solar System - Question 8

A group of _______ forming various patterns is called constellation.

Detailed Solution for Test: The Earth In The Solar System - Question 8

A constellation is a group of stars that appears to form a pattern or picture. They are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations

Test: The Earth In The Solar System - Question 9

How many days does it take the earth to revolve around the sun?

Detailed Solution for Test: The Earth In The Solar System - Question 9

Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds.

Test: The Earth In The Solar System - Question 10

A huge system of stars is called _______.

Detailed Solution for Test: The Earth In The Solar System - Question 10

A group of stars forming various patterns is called a constellation. A huge system of stars is called a galaxy.

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems.

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