Which of the following best explains a population pyramid (age-sex pyramid) that looks like an umbrella, with very narrow cohorts at the bottom that widen broadly near the top?

A) The population pyramid is upside down.
B) The population is a retirement village.
C) The population is a college town.
D) Migrants are dominant in the community.
E) The population has an open-door migration policy.


Answer: B

Environmental & Atmospheric Sciences

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Environmental & Atmospheric Sciences