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a. Which of the top 10 most populous countries in 2011 is/are expected to approximately increase by at least 50% in population by 2050? You can determine this by multiplying the 2011 population numbers by 1.5 (this represents a 50% increase). Answer: b. Which countries currently in the top 10 will no longer be in the top 10 by 2050? ................
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