It took approximately ________ years for the world's population to double from 170 million in AD 1 to 340 million.
A)50
B)550
C)1 150
D)1 950

Name: It took approximately ________ years for the world's population to double from 170 million in AD 1 to 340 million. A)50 B)550 C)1 150 D)1 950
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The world's population doubled from 170 million in AD 1 to 340 million over approximately 1,150 years, reaching this figure around the year 1150.

It Took Approximately ________ Years for the World's Population to Double