More than 27% of Earth's crust is made up of __________ molecules.
A)oxygen
B)silicon
C)aluminum
D)iron

Name: More than 27% of Earth's crust is made up of __________ molecules. A)oxygen B)silicon C)aluminum D)iron
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Question

Quizplus · Accepted Answer

Silicon is the second most abundant element in the Earth's crust, making up over 27% of it. Oxygen is the most abundant element in the Earth's crust, but it is not a molecule on its own. Aluminum and iron make up smaller percentages of the crust compared to silicon.

More Than 27% of Earth's Crust Is Made Up of __________