GENERAL GEOLOGY

Detailed explanation-1: -Oxygen is by far the most abundant element in the Earth’s crust, making up 46% of mass-coming up just short of half of the total. Oxygen is a highly reactive element that combines with other elements, forming oxides.

Detailed explanation-2: -Oxygen is the most abundant element in the Earth’s crust. Since oxygen is reactive elements and forms compounds with most of the other elements hence it is found in abundance.

Detailed explanation-3: -The vibrational spectrum of iron, the most abundant element in Earth’s core, at 171 gigapascals. By squeezing iron between two diamond anvils (inset), Caltech researchers reproduced the pressures found in Earth’s core.

Detailed explanation-4: -Look at the properties of Oxygen and Silicon-the two most abundant elements in the Earth’s crust-by clicking on their symbols on the Periodic Table.

Detailed explanation-5: -The most abundant element in the earth’s crust is oxygen (46. 1%). The chemical formula of oxygen (dioxygen) is O2.