98% of the crust of the earth is made of eight elements. Which of the following is not among these eight elements?
A. Oxygen and Silicon
B. Aluminium and Iron
C. Calcium and Sodium
D. Mica and Granite.
Answer:D
98% of the crust of the earth is made of eight elements. Which of the following is not among these eight elements?
A. Oxygen and Silicon B. Aluminium and Iron C. Calcium and Sodium D. Mica and Granite.