The area of the Earth's total surface is of the order of ________.

1.	The area of the Earth's total surface is of the order of ________.
A.	10 million square kilometres
B.	50 million square kilometres
C.	00 million square kilometres
D.	50 million square kilometres
Answer» B. 50 million square kilometres

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The area of the Earth's total surface is of the order of ________.

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