Question

Which element is found in both mantle and crust? 

Options

• Silica 

• Magnesium 

• Aluminium 

• Iron 

Answer 1

Silica 

Explanation:

Silica is the most abundant material found in both crust and mantle.

Mass percentage of silica in Crust = 60.6%

Mass percentage of silica in Mantle = 44.71%