Everyday Science · Astronomy & Universe · page 8 of 15

Planets of Our Solar System MCQs with Answers

Includes 37 past paper MCQs (marked).

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Planets of Our Solar System MCQs (71–80)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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71.
Past Paper MCQ
Which is the outermost planet in the solar system?
Correct Answer: C. Neptune
One-liner
The outermost planet in the solar system is Neptune.
72.
Past Paper MCQ
Only one planet in the Solar system has no atmosphere which is?
Correct Answer: C. Mercury
One-liner
Mercury is the only planet in the Solar System that has virtually no atmosphere.
73.
Past Paper MCQ
The planet which has highest density is?
Correct Answer: B. Earth
One-liner
Earth is the densest planet in the Solar System, with an average density of about 5.51 g/cm³.
74.
Past Paper MCQ
Which planet has the shortest rotation time around its axis?
Correct Answer: B. Jupiter
One-liner
Jupiter has the shortest rotation time around its axis, completing one full rotation in about 10 hours.
75.
Past Paper MCQ
Which planet in the solar system has the highest density?
Correct Answer: B. Earth
One-liner
Earth is the densest planet in the solar system, with an average density of about 5.51 g/cm³.
76.
Past Paper MCQ
Which planet is closest to Earth?
Correct Answer: C. Mercury
One-liner
On average, Mercury is the closest planet to Earth because it spends more time in closer orbital alignment than Venus or Mars.
77.
Past Paper MCQ
Which planet has no moon?
Correct Answer: B. Venus
One-liner
Venus is the planet that has no moon, along with Mercury.
78.
What is the name of the fastest rotating planet?
Correct Answer: B. Jupiter
One-liner
Jupiter is the fastest rotating planet in the Solar System, completing one rotation in just under 10 hours.
79.
Which of the following is called 'Blue Planet'?
Correct Answer: B. Earth
One-liner
Earth is called the Blue Planet because about 71% of its surface is covered by water, giving it a blue appearance from space.
80.
What are the two main components of Jupiter's atmosphere?
Correct Answer: D. Hydrogen and Helium
One-liner
Jupiter's atmosphere is primarily composed of Hydrogen and Helium, similar to the composition of the Sun.

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Planets of Our Solar System MCQs with Answers

Planets of Our Solar System MCQs (71–80)

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