A complete ecosystem for UPSC Civils and State PSC Preparation

World Geography MCQs – 05 (Universe and Solar System)

Universe and Solar System MCQs with answers and explanations for all examinations.

Chapterwise MCQs

Short Notes

Free Test Series

CivilsCracker Explains

1. Which of the following planets have rings around them:

1. Jupiter
2. Saturn
3. Mars
4. Uranus

Choose from the following options:

(a) 1 and 2 Only
(b) 1, 2 and 3 Only
(c) 2, 3 and 4 Only
(d) 1, 2 and 4 Only

Correct Answer –  (d) 1, 2 and 4 Only

  • Jupiter, Saturn and Uranus have rings around them. 
  • These are belts of small debris. 
  • These rings may be seen from the earth with the help of powerful telescopes.

2. Which of the following is correctly matched:

1. Brightest Planet → Venus
2. Largest Planet → Jupiter
3. Earth’s Twin → Venus

Choose the correct matches from the following options:

(a) 1 and 2 Only
(b) 2 and 3 Only
(c) 1 and 3 Only
(d) All are correctly matched

Correct Answer – (d) All are correctly matched

  • Venus is called Earth’s twin because of its similar size, mass, and composition to Earth.
  • Venus is the second planet from the sun in terms of distance.
  • Venus is the brightest planet in the solar system, and is often visible in the night sky within a few hours of sunset or before sunrise therefore it is also called the “Morning star” or “Evening star”.
  • Jupiter is the largest in the Solar System. 
  • It is the fifth planet from the Sun in terms of distance.

3. Hottest Planet in the Solar System is :

(a) Venus
(b) Mercury
(c) Mars
(d) Jupiter

Correct Answer – (a) Venus 

  • Venus is the hottest planet in our solar system.
  • Venus has a thick atmosphere made up of greenhouse gasses like carbon dioxide which traps heat and creates a greenhouse effect. 
  • This greenhouse effect causes the rise in surface temperature of Venus to around 465°C (865°F).

4. Which among the following planets is called Red planet :

(a) Venus
(b) Mercury
(c) Mars
(d) Jupiter

Correct Answer – (c) Mars 

  • Mars is known as the red planet because it looks red from Earth. 
  • The reddish color comes from the high concentration of iron oxide in the rocks of the Martian surface.
  • Phobos and Deimos are the two moons of Mars.

5. The Asteroid Belt is located between which among the following planets :

(a) Venus & Mercury
(b) Venus & Earth
(c) Mars & Earth
(d) Mars & Jupiter

Correct Answer – (d) Mars & Jupiter

  • The Asteroid Belt is located between Mars & Jupiter.
  • It contains a great many solid and irregularly shaped bodies/protoplanets called asteroids.
  • Ceres is the largest asteroid.

6. Europa and Ganymede are the moons of ? :

(a) Venus
(b) Mercury
(c) Mars
(d) Jupiter

Correct Answer – (d) Jupiter

  • Europa and Ganymede are the moons of Jupiter.
  • Ganymede is the largest moon in the solar system.

7. Titan is the moons of ? :

(a) Venus
(b) Saturn
(c) Mars
(d) Jupiter

Correct Answer – (b) Saturn 

  • Titan is the largest moon of Saturn and the second largest moon in the Solar System.
  • It is the only moon known to have an atmosphere denser than that of Earth’s.

8. The brightest star outside our solar system is ?

(a) Sirius
(b) Proxima Centauri
(c) Alpha Centauri
(d) None of the above

Correct Answer – (a) Sirius

  • The brightest star outside our solar system is Sirius, also known as the ‘Dog Star’.

9. Consider the following statements about Black holes:

1. The center of the black hole is called the singularity.
2. Black holes have massive gravitational force.

Which of the above assertions is/are true?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None of the Above

Correct Answer – (c) Both 1 and 2 

  • Black holes are the combination of large mass and small size having high density.
  • The center of the black hole is called the Singularity.
  • A black hole exerts such massive gravitational force that its escape velocity is equal or more than speed of light.

10. Consider the following statements about Galaxy :

1. We live in the galaxy called the Milky Way.
2. It is a spiral galaxy.

Which of the above assertions is/are true?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None of the Above

Correct Answer – (c) Both 1 and 2 

  • Galaxies can be of various kinds like elliptical, spirals etc.
  • We live in the galaxy called the Milky Way.
  • It is a spiral galaxy.
  • The Andromeda Galaxy is the closest large galaxy to the Milky Way which can even be seen from earth with naked eyes.

11. Consider the following statements about Stars:

1. Stars shine because nuclear fission occurs in their core.
2. Proxima centauri is the closest star to Earth after the sun.

Which of the above assertions is/are true?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None of the Above

Correct Answer – (b) 2 only 

  • Stars shine because nuclear fusion occurs in their core.
  • Nuclear fusion converts lighter elements into heavier ones and in the process releases tremendous amounts of energy.
  • Proxima centaury is the closest star to Earth after the Sun. It is about 4.3 light-years away from Earth.

12. Consider the following statements about about Sun:

1. The Sun is not a solid object but rather a big ball.
2. The Sun is mostly made of Hydrogen and Helium.

Which of the above assertions is/are true?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None of the Above

Correct Answer – (c) Both 1 and 2 

  • Both the statements are true.
  • The Sun is not a solid object but rather a big ball.
  • It is mostly made of Hydrogen and Helium.

13. Consider the following statements::

1. Comets can have a long tail-like structure attached to them.
2. Meteors burn up in the atmosphere and can never reach the earth surface.

Which of the above assertions is/are true?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None of the Above

Correct Answer – (a) 1 only 

  • Comets are rocky and icy objects that move in long, highly elliptical orbits around the Sun.
  • When they get closer to the Sun, they warm up, causing the ice in the comets to vaporize and form long “tails”.
  • A Meteor is an object from outer space that enters Earth’s atmosphere, but does not land on Earth as it gets burned in the atmosphere . However, some meteors are large enough to reach the earth surface. Those are called Meteorites.

14. Which among the following planets is called Blue Planet ?

(a) Venus
(b) Mercury
(c) Mars
(d) Earth

Correct Answer – (d) Earth

  • Earth is called the “Blue Planet” due to the abundant water on its surface.
  • Two-thirds of the earth’s surface is covered with water.

13. Parsec is used to measure which among the following ?

(a) Density of stars
(b) Astronomical distances
(c) Brightness of stars
(d) Orbital velocity of planets

Correct Answer – (b) Astronomical distances

  • A parsec (pc) is a unit of length used to measure the Astronomical distances outside the solar system. 
  • It’s the largest unit of distance used in astronomy. 
  • One parsec is approximately equal to 3.26 light-years.

Also Read in World Geography MCQs :

Join us on WhatsApp

We are adding new Notes, Chapterwise MCQs, Quizzes, Previous Years Questions everyday

Join now

Civils Cracker

Mock Tests

Study Materials

State PSC

Facebook Twitter Youtube Telegram Instagram Pinterest Quora

© 2024 CivilsCracker.com

error: Content is protected !!

Join us on WhatsApp

We are adding new Notes, Chapterwise MCQs, Quizzes, Previous Years Questions everyday

Join now