Q. At which place does the oxygen that keeps us alive come from

  • (A) Water
  • (B) Carbonates absorbed from soil
  • (C) Carbon dioxide
  • (D) Oxides of minerals
✅ Correct Answer: (A) Water

Published by Ram Sharma ⭐ 193.88K Points at 18-Mar-2022 07:58 pm in Science

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