Multiple choice

Which one of the following elements is most abundant in the earth's crust?

  1. Carbon

  2. Sulphur

  3. Oxygen

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oxygen is the most abundant element in the Earth's crust, accounting for nearly half of its total mass. It is primarily found in combination with other elements in minerals like silicates and oxides.

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