Question

it is the most common element on earth​

Answer 1

Explanation:

Oxygen

Q: What is the most abundant element on Earth? A: Oxygen, which composes about 49.5% of the total mass of the Earth's crust, waters and atmosphere, according to the textbook “Modern Chemistry.” Silicon is second at 28%.

Answer 2

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Explanation:

oxygen

Earth's composition, however, is different from that of the entire universe. For instance, oxygen is the most common element by weight in Earth's crust, followed by silicon, aluminum and iron, according to HyperPhysics, a site run by Georgia State University.