Multiple Choice
Why are silicate rocks the most common on Earth?
A) The most common minerals are silicates.
B) Iron, oxygen, silicon and magnesium make up 91.2% of the Earth's mass.
C) Oxygen, silicon, iron, and hydrogen make up 91.2% of the Earth's mass.
D) Both a and b are correct.
E) Both a and c are correct.
Correct Answer:
Verified
Correct Answer:
Verified
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