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422

Q:

Which gas is filled in the balloons used to get information about weather related changes?

  • 1
    hydrogen
  • 2
    helium
  • 3
    oxygen
  • 4
    nitrogen
  • Show Answer
  • Workspace

Answer : 2. "helium"
Explanation :

Helium: It is an inert gas that is lighter than air. It is non-flammable.

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