Answer:Upton Sinclair was a famous novelist and social crusader from California, who pioneered the kind of journalism known as "muckraking." His best-known novel was "The Jungle" which was an expose of the appalling and unsanitary conditions in the meat-packing industry.
Explanation:
Sudan. It split into north Sudanand south sudan
That would be C. the northeast
This was location of most of the original colonies, and it doesn't make sense for any other region to be more urbanized and industrialized. The US didn't inhabit the entire continent at once, instead, they slowly made their way across. Industrialization takes a long time, and it only makes sense that the longest inhabited part of the country would be the most industrialized at that time.
Explanation:
a )they help historians focus on the effect of one important idea on different societies over time