Aging is occurring much more rapidly in less developed regions than it did in the United States and other already aging

Question

Aging is occurring much more rapidly in less developed regions than it did in the United States and other already aging countries The pattern may seem counterintuitive since developing regions have much higher fertility and younger populations than the developed nations How is this possible that they can grow older so much faster Select all that are true O Migration happened at a slower rate in the less developed nations but were not followed by a decline in morality Improvements in migration happened faster in the less developed nations and typically followed a decline in morality O The primary explanation is that the improvements in mortality happened more slowly in the developed nations and typically followed a decline in fertility

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