Which of these increases the life expectancy in cities, further increasing the proportion of people who live there?

Explanation:

How does increasing life expectancy affect population size? Increasing life expectancy decreases the death rate, which increases population size. When measuring GDP, it is important to note that businesses' goods flow to consumers, whose payments for those goods provide profits for those businesses

"the location of the epicenter" would be the correct answer

a substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container.

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