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Analysis:
1. What gas filled the balloon and where did it come from? Explain.

User Jannis
by
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1 Answer

1 vote

Answer:

Helium

Step-by-step explanation:

Helium is extracted in a few places in the world, namely USA, Algeria, Russia and Qatar. Helium is abundant in space, where it's produced as a product of the fusion reaction inside stars such as the sun.