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Even though the rate of growth has begun to slow down, most people believe the population size may be eight billion during the next several years.. If we examine the amount of land avai[r]
Đang tải... (xem toàn văn)
Even though the rate of growth has begun to slow down, most people believe the population size may be eight billion during the next several years.. If we examine the amount of land avai[r]
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