Which of the following planets takes the shortest time to complete one revolution around the Sun?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Mercury
Mercury is the planet nearest to the Sun, so it has the smallest orbit and moves fastest along it. It completes one revolution in about 88 days, against about 225 days for Venus, 365 days for the Earth and about 165 years for Neptune.