Multiple choice

Which of the following celestial bodies contains abundant quantity of helium - 3, a potential source of energy?

  1. Earth

  2. Moon

  3. Venus

  4. Saturn
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Helium-3 is an isotope of helium that is rare on Earth but found in relatively abundant quantities in the lunar regolith, implanted by solar wind over billions of years. It is considered a potential clean fuel for future nuclear fusion reactors.

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