While analyzing Martian meteorite found in Africa since 2012, research – McqOptions

MCQOPTIONS

1.	While analyzing Martian meteorite found in Africa since 2012, researchers from University of Houston have unearthed some evidences of at least ________ years of volcanic activity on Mars.
A.	2 billion
B.	3 billion
C.	1.5 billion
D.	None of these
Answer» B. 3 billion

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