Multiple choice general knowledge science & technology

Which gas is usually used in a weather balloon?

  1. Hydrogen

  2. Helium

  3. Oxygen

  4. Carbon dioxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct answer is A (Hydrogen). Weather balloons have traditionally used hydrogen gas because it is lighter than air and provides good lift. While helium is also used (especially for safety), hydrogen has been more common for weather balloons due to its lower cost and greater buoyancy. Oxygen and carbon dioxide are heavier than air and cannot lift balloons.

Keep practicing — related questions