Question

The most abundant element in the Earth's crust
1. Silcon
2. Nitrogen
3. Oxygen
4. Calcium
5. None of the above/More than one of the above

Answer 1

Correct Answer - Option 3 : Oxygen

The correct answer is Oxygen.

• The most abundant element is Oxygen.
• The most abundant element in the Earth's crust is Oxygen.
• Oxygen is making up about 47% of the earth's mass.
• But, Hydrogen is the most abundant element in the Universe.
• Hydrogen is making up about 3/4th of the mass of the universe.
• Helium is second making up to 25%.
• Oxygen is the third most abundant element of the Universe(Not in Earth's crust).