Q. Which of the following elements are found in highest and lowest quantities respectively in the crust of the earth?

  • (A) Oxygen and silicon
  • (B) Calcium and sodium
  • (C) Sodium and magnesium
  • (D) Oxygen and magnesium
✅ Correct Answer: (D) Oxygen and magnesium

Published by Deepak Sahoo ⭐ 10.83K Points at 07-Apr-2021 03:56 pm in Geography

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