A number of elements are available in earth's crust but most abundant elements are___________

Options

A. Al and Fe
B. Al and Cu
C. Fe and Cu
D. Cu and Ag

Answer

A

Explanation

Among a number of elements which are available in earth crust, the most abundant metals are aluminium and iron. Aluminium is third most abundant element in earth crust. i.e., 8.3% by weight while iron present in earth crust with 4.2% by weight. Copper and silver are also found in earth crust but their abundance percentage is low.