MCQ Detailed View

Our solar system has eight main planets, each different in size, structure, and distance from the Sun. Among them, Jupiter is the largest planet, both in diameter and mass. It is known as a gas giant because it is primarily made of hydrogen and helium gases rather than solid rock.

Jupiter has a diameter of approximately 139,820 kilometers, making it more than 11 times wider than Earth. Its mass is about 318 times that of Earth, and it is 2.5 times heavier than all the other planets combined. This huge size gives Jupiter a very strong gravitational field, capable of capturing asteroids and comets, helping to protect the inner planets, including Earth.

The planet is well known for its Great Red Spot, a massive storm that has been active for hundreds of years. Jupiter has a thick atmosphere with fast-moving clouds, high-speed winds, and powerful storms. It also has a strong magnetic field and over 90 known moons, including Ganymede, the largest moon in the entire solar system.

The other options in this question are incorrect:

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  Venus is similar in size to Earth but much smaller than Jupiter.

  
  


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  Pluto is no longer considered a major planet and is tiny compared to others.

  
  


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  None is wrong because Jupiter is a clearly known largest planet.

  
  

This makes Jupiter (Option C) the correct answer. Learning about planetary sizes is part of Everyday Science, helping students understand the structure of our solar system and the importance of gravitational forces in space.