Question

Which of the following is the biggest planet?
A) Jupiter
B) Venus
C) Mercury
D) Pluto

Answer 1

Hint: We need to know the planets in the solar system and their relative sizes with respect to one another to find the biggest planet in the solar system which is the required solution for this problem. We have to compare Pluto also along with the planets.

Complete step-by-step solution
We know that all the given planets in the options are the planets in our solar system. There are eight planets and Pluto that revolves around the sun which is the power source of our solar system. It is believed that the solar system was formed by a burst of the sun some time back in time, very similar to the big bang. The planets are the results of large pieces from the sun which started revolving due to the strong gravitational force of the Sun.
The planets, being thrown out from the sun, have random sizes and arrangements in the solar system. The planets are arranged in the order – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto – from the sun.
The radius of each planet is given below to compare the size of each planet.
Mercury – 2439.7 km
Venus – 6051.8 km
Earth – 6371 km
Mars – 3389.5 km
Jupiter – 69911 km
Saturn – 58232 km
Uranus – 25362 km
Neptune – 24622 km
Pluto – 1188.3 km
From the above data, we can understand that Jupiter has the largest radius among the planets. That means Jupiter is the biggest planet in the solar system.
The correct answer is option A.

Note: The distance from the sun to each planet increases from Mercury to Pluto on a large scale. All the planets have an elliptical revolving path, except for Pluto, which is a dwarf planet (too smaller than other planets) and has a somewhat irregular revolving path.