Answer:
The publication of Upton Sinclair's <em>The Jungle</em> brought light on to the meat industry and the terrible conditions of the workers and the slaughter houses. The vivid descriptions of the slaughterhouses made the American public push for more regulation on where the food was being "prepared".
Explanation:
Two planes hit the World Trade Center a.k.a the Twin Towers, and one hit the Pentagon.
Answer:
Tsar Nicholas II
Explanation:
The other three listed were in the Communist party who formed the USSR.