Question

The Earth's mantle is composed primarily of:

• A. Iron and nickel
• B. Silicate minerals
• C. Water and gases
• D. Organic materials

Hint:

Remember: The Earth's mantle is mainly made of silicate minerals, which are rich in magnesium and iron.

Answer 1

The Correct Option is B

The Earth's mantle is primarily composed of silicate minerals, which include olivine, pyroxenes, and feldspar.
These minerals are rich in magnesium and iron, but the mantle's main composition is silicates, which are compounds containing silicon and oxygen.
Iron and nickel are primarily found in the Earth's core, while water, gases, and organic materials are not major components of the mantle.