Multiple choice general knowledge science & technology

The primary source of water molecules is the interaction of H ions from solar wind with the oxygen. Where is the oxygen coming from?

  1. It is present in the atmosphere

  2. It is present in the lunar surface soil and rock

  3. It is present in the meteor particles which collided with the moon

  4. It is also present in the solar wind
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solar wind contains hydrogen ions (protons) that bombard the lunar surface. When these H+ ions interact with oxygen-rich minerals in the lunar regolith (soil and rocks), they form water molecules (H2O). The oxygen is chemically bound in oxides within lunar surface materials, not in the atmosphere (which the Moon barely has) or coming from solar wind itself.

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