Question

5. The earth's crust is made up of​

Answer 1

Explanation:

THE EARTH'S CRUST IS MADE UP OF MINERALS

Answer 2

Tarbuck, Earth's crust is made up of several elements: oxygen, 46.6 percent by weight; silicon, 27.7 percent; aluminum, 8.1 percent; iron, 5 percent; calcium, 3.6 percent; sodium, 2.8 percent, potassium, 2.6 percent, and magnesium, 2.1 percent.