List some of the external problems that China faced during the 1800s.

the answer is following

Explanation:

by the mid nineteenth century china's population reached 450 million or more , more than three times the level in 1500 . the inevitable results were land shortages , famine , and an increasingly impoverished rural population . heavy       taxes , inflation , and greedy local officials further worsened the farmer's situation

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

not really a history or a question at all.

explanation:

maybe this isn't the best place to ask this, maybe a social media platform like twitter or instagram? -austin