MINERALS EXIST WHERE THEY ARE ….. .A. BECAUSE OF THE CHANGING PHYS...

48. - TÀI LIỆU DE THI TU TAI MON TIENG ANH
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48. Minerals exist where they are ….. .

A. because of the changing physical nature of the earth

B. because they are also need to be kept by soil

C. because they are great protectors

D. All are correct