A) 4.5 billions
B) 5.2 billions
C) 6.2 billions
D) None of the above
Correct Answer: C
Solution :
The population of the world has steadily increased to 5 billion on July 11, 1987 and 6 billion on October 12, 1999 and 6.2 billion on 2001.You need to login to perform this action.
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