Which is not one of the eight most common elements in earth’s continental crust? silicon carbon aluminum oxygen

 Carbon

Explanation:  The top layer of the earth is known as lithosphere which contain the crust of the earth.

The earths crust contain some of the most abundant elements which facilitate the human life .

In this series of top abundant elements found in Earths continental crust, Oxygen scores the first position and after that Silicon comes as second and Aluminum bags the third position and so on.

Therefore, carbon does not even come in the top 10 elements which are most abundant in the earths crust.