This is for a high school unit about southwest asia and northern africa. me quickly. this is worth 50 !

select one of the issues listed below and discuss its effects on the region.

economics
population
politics
sustainability

Out of many issues that affect the region in a number of positive and negative ways, the population is one that makes the greatest impact.

Explanation:

A well-managed population acts like a blessing for the region, but if the same population is ill-managed, it proves to be havoc. For proper and optimum use of natural resources, private and government property, facilities, amenities, etc., it is primarily important that the population is well-managed. The region would always remain in a positive frame if the population acts like a conservator and not like an exploiter.

It's either  a. chiang kai-shek and the nationalists turned against the communists and killed hundreds of them. orb. hundreds of peasants were killed in shanghai during the period of warlord rule.  if we take into account that there was warlord rule at the time, i think that it's b (not entirely sure though)just my best thoughts.