What are the eight most common elements found in Earth's crust, listed from most common to least common (by percent)?

a.) oxygen, silicon, aluminum, iron, calcium, magnesium, potassium, sodium
b.) oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium
c.) oxygen, silicon, aluminum, iron, calcium, potassium, sodium, magnesium
d.) magnesium, potassium, sodium, calcium, iron, aluminum, silicon, oxygen
e.) oxygen, silicon, aluminum, iron, calcium, sodium, magnesium, potassium Submit


Answer: b.) oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium

Environmental & Atmospheric Sciences

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