Question

Which statements describe oceanic crust? Select the two correct answers.

A. It is made of all types of rocks.
B. Its age ranges from very young to more than 4 billion years old.
C. It is between 25 and 70 km thick.
D. It is formed at zones of volcanic activity on the ocean floor.
E. It contains silicate minerals high in iron and magnesium.

Answer 1

Step-by-step explanation:

It contains silicate minerals high in iron and magnesium. And it's formed at zones of volcanic activity on the ocean floor.

Answer 2

The ocean floor is made up of iron deposits, gold deposits, and volcanic activity and erosion, because of the layers of sediment. Hope this helps :D