which two elements are the most abundant in the earths crust?\noa. iron and magnesium\nob. silicon and…
which two elements are the most abundant in the earths crust?\noa. iron and magnesium\nob. silicon and magnesium\noc. iron and nickel\nod. silicon and oxygen
Answer
Brief Explanations:
Oxygen is the most abundant element in the Earth's crust, making up about 46.6% by mass. Silicon is the second - most abundant, at about 27.7%.
Answer:
D. silicon and oxygen