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Geography, 10.10.2019 22:00 helpmepeeeeease
4. 5 .the natural population replacement fertility rate in the u. s a) 2.1 births per woman b) 3.9 births per woman c) 3.1 births per woman d) 4.2 births per woman the rate at which new disease or mortality events will occur in a population in a given period of time. a) the biological gradient
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