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

AIt is made of all types of rocks.
BIts age ranges from very young to more than 4 billion years old.
CIt is between 25 and 70 km thick.
DIt is formed at zones of volcanic activity on the ocean floor.
EIt contains silicate minerals high in iron and magnesium.

Verified Answer :

BigDef113

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

Answer:

Explanation:

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

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