Solar System and Evolution of Earth: UPSC Previous Year Questions (Geography)
1 previous year UPSC Prelims question on Solar System and Evolution of Earth (Geography). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 2003Geography · Solar System and Evolution of Earth
Q1. Among the following, which planet takes maximum time for one revolution around the Sun?
Explanation
The time a planet takes to complete one revolution around the Sun depends on its distance from the Sun. Planets farther from the Sun have larger orbits, resulting in longer revolution periods.
Option (b) is correct: Jupiter takes the longest time among the given options to orbit the Sun, requiring approximately 4,333 days(11.86 Earth years). This is due to its significantly larger orbital path compared to the other planets listed. Hence, this is the correct answer. Options (a), (c) and (d) are incorrect:
Earth completes one revolution around the Sun in approximately 365.25 days, which is relatively short compared to the other options provided. Mars requires around 687 days(1.88 Earth years) to complete a revolution. While this is longer than Earth’s revolution time, it is still shorter than that of Jupiter. Venus has the shortest revolution period among the listed planets, taking approximately 224.7 Earth days(0.615 years) to orbit the Sun.
Answer key for these questions
Q
UPSC year
Correct answer
1
2003
(b) Jupiter
Frequently asked questions
How many previous year UPSC questions are there on Solar System and Evolution of Earth?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Solar System and Evolution of Earth (Geography), asked from 1996 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Solar System and Evolution of Earth?
Questions on Solar System and Evolution of Earth (Geography) are available for 12 years, from 1996 to 2025. Use the Year filter to practise a single paper.
