Social epidemiology is a branch of epidemiology that focuses particularly on the effects of social-structural factors on states of health. Social epidemiology assumes that the distribution of advantages and disadvantages in a society reflects the distribution of health and disease.
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The development of barbed wire in the 1870s changed the cattle ranching industry by allowing the cattle ranching owners that have large ranches to enclose their own territory in which allowed them from eliminating the possible competition in regards of the resources. It is because the barbed wire in the 1870s serves as an important tool that ranchers could use as a way of protecting their animals in the barn from predators capable of killing their animals and from also preventing other people from trespassing without their permission.
Answer:
Llama because of merchants and traders i think maybe horse
Explanation:
Answer: the conflicts that led up to the civil war were the spreading of slavery to the west, uncle tom's cabin, the compromise of 1850, and the missouri compromise. That's some I know. the effects on both sides were lincoln died in the north and the south had to face judgment from the north.
