Mercury is the first and innermost planet in the solar system.
It orbits the Sun in just 88 Earth days, the shortest orbital period of all the planets.
Its proximity to the Sun results in the most extreme temperature fluctuations in the solar system.
Why Other Options Were Wrong
Option A: Venus is the second planet from the Sun, not the nearest.
Option B: Mars is the fourth planet from the Sun.
Option D: Jupiter is the fifth planet from the Sun.
Related Visual
Visual 1: Diagram - An illustration of the solar system showing the Sun and the planets in their correct order of orbit. This helps visually confirm that Mercury is the closest planet to the Sun.
Clinical Relevance
Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Order of planets in the solar system as background academic context rather than a clinical decision trigger.
General knowledge questions are a common component of competitive examinations, including those for nursing.
These questions assess a candidate's overall awareness and basic educational foundation beyond their core professional subjects.
A strong general knowledge base demonstrates intellectual curiosity and the ability to retain information, which are valuable traits in any professional field.
How to Approach the Question
Identify the key terms in the question: 'nearest planet' and 'sun'.
This is a factual recall question from general science (astronomy).
Recall the order of the planets from the Sun.
A useful mnemonic to remember the order is 'My Very Educated Mother Just Served Us Noodles' (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune).
Based on this order, identify the first planet, which is Mercury.
Compare this with the given options to find the correct answer.
Concept Tested & Keywords
Concept Tested: Order of planets in the solar system
Stem keywords: nearest planet, sun
Lead-in keywords: is
Question ID
QVs_oIRyNWehSRqF3-y7jz
Practise the full RRB Staff Nurse Jaipur-6th June 2018
Attempt every question from this paper in a timed mock, then review the full solution for each one.