Everyday Science Easy ppsc nts

Which gas is commonly used to fill balloons so that they float in air?

  • A Oxygen
  • B Carbon dioxide
  • C Helium
  • D Nitrogen
Correct Answer: Option C — Helium
Explanation: Helium is used to fill balloons because it is significantly lighter than air allowing balloons to float and rise due to its low density compared to atmospheric gases.
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MCQ Details
SubjectEveryday Science
DifficultyEasy
Exam Typesppsc, nts
CorrectOption C
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