The most abundant element in the earth's crust is
A) hydrogen
B) oxygen
C) iron
D) aluminum
Correct Answer:
Verified
Q6: Which kind of rocks are formed by
Q9: The process by which aluminum is prepared
Q10: Which element is likely to occur free
Q11: Which of the following is the most
Q12: Which metal is sufficiently concentrated in the
Q12: Which does not apply to silicates?
A) clay
B)
Q14: Which substance is formed when silica is
Q15: Which of the following metals and ores
Q16: Which mineral is likely to be used
Q19: The main source of magnesium is
A) Earth's
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