MCQ Detailed View

The Sun, our closest star, is enormous compared to Earth. In terms of diameter, the Sun is approximately 109 times bigger than Earth. This means that if you could line up 109 Earths side by side, they would roughly equal the Sun's diameter.

To better understand the Sun’s size:

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  Diameter: The Sun’s diameter is about 1.39 million kilometers, while Earth’s diameter is only about 12,742 kilometers.

  
  


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  Volume: The Sun’s volume is so vast that around 1.3 million Earths could fit inside it.

  
  


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  Mass: The Sun is about 333,000 times heavier than Earth, accounting for 99.8% of the total mass of the solar system.

  
  

The Sun’s massive size is essential because it provides the gravitational force necessary to hold all the planets, moons, asteroids, and comets in their orbits. Without the Sun’s immense size and gravitational pull, the solar system would not be stable, and planetary motion would not be possible as we know it.Other options like 105, 107, or 111 times are close estimates but are not scientifically accurate. Astronomers have measured the Sun’s diameter precisely and confirmed the ratio of 109 times larger than Earth. This measurement is based on extensive observations using telescopes and space instruments.

The correct answer is Option C: 109, which accurately represents the diameter difference between the Sun and Earth. This comparison helps illustrate the massive scale of our star compared to our home planet, reminding us of the Sun’s vital role in sustaining life on Earth and powering the entire solar system.