issb general knowledge MCQ #588

Which gas makes up most of the Sun?

issb general knowledge MCQ #588

  1. Question 1

    Q1. Which gas makes up most of the Sun?

    • A) Oxygen
    • B) Hydrogen
    • C) Nitrogen
    • D) Carbon dioxide

    Answer: Hydrogen

    Explanation: The Sun is mostly hydrogen undergoing nuclear fusion. Remember this fact for ISSB general knowledge sections.