everyday science MCQ #5402

Which gas is commonly used in balloons and airships?

everyday science MCQ #5402

  1. Question 1

    Q1. Which gas is commonly used in balloons and airships?

    • A) Hydrogen
    • B) Helium
    • C) Carbon
    • D) Hydrogen sulfide

    Answer: Helium

    Explanation: Helium is preferred for balloons and airships because it is non-flammable and has a very low density, providing lift safely; hydrogen, though lighter, is highly flammable.