In a region with a low crude birthrate, a high crude death rate is most likely indicative of
an aging population.
a lack of health care.
a high infertility rate.
a lack of food and water.
an infertile population.

A lack of food and water

Explanation:

In a region with a low crude birthrate, a high crude death rate is most likely indicative of a lack of food and water. This is because without food and water, people can die, thus causing a high crude death rate. Food and water is necessary for survival.

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figureit out

explanation:

because scientists need to know the stars so they understand space

ask an adult bc this is too hardcore