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

c: the amount of water released through the dam and the dam's height account for the potential energy.

explanation:

answer:

the crusades were organized by western european christians after centuries of muslim wars of expansion. their primary objectives were to stop the expansion of muslim states, to reclaim for christianity the holy land in the middle east, and to recapture territories that had formerly been christian.

explanation:

you can literally google this.