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UKPSC PCS 2010 · Question 121 of 138

Which of the following planet take the longest time for one revolution around the Sun ?

Science

  1. AEarth
  2. BSaturnCorrect
  3. CJupiter
  4. DMars

Answer: B. Saturn

Explanation

Saturn takes about 29.5 years per revolution, the longest of the four.

Source: UKPSC Lower PCS Prelims 2010 (Combined Lower Subordinate Services Exam), held 2011

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