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What is the Most Abundant Element on Earth?

Answer – Oxygen is the most abundant element on Earth.

Explanation:

Oxygen makes up about 46% of the Earth’s crust; this makes it the most abundantly found element on Earth. Silicon is the second most abundant element, followed by aluminum and iron.

Oxygen also makes approximately 21% of the atmosphere around Earth, it is the second most available gas after nitrogen.

However, oxygen is not the most abundant element when looking at the universe as a whole: hydrogen is present in the largest quantity across the universe, while oxygen appears third on this list. Thus, concentration of elements is a little different when Earth alone is compared with the rest of the universe.

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