American cities industrialized during the 1880s and infectious diseases appeared as a real threat. The immigration and the developement of large urban areas allowed diseases to spread quickly and infect larger populations. The immigrants lived in chea houses with inadequately hygiene, that made things worse.
The correct answer is C) Allied leaders compromised and agreed to open a second front in France.
The results of the Tehran conference compared with the goals of Allied leaders were that "Allied leaders compromised and agreed to open a second front in France."
The three Allied leaders in World War II met in Tehran, to define the strategy to follow in that stage of the War. Soviet Union Joseph Stalin, Great Britain Prime Minister Winston Churchill, and US President Franklin D. Roosevelt got together on November 28, until December 1, 1943, and agreed to open up a new war front in France to fight the Gerrman Army. They planned the invasion of France for June 6, 1944.
The purchase of Alaska was profitable a great deal. First, it must be noted that the purchase was for Geo-political reasons.The actual price was repaid in twenty years through the sale of fur seal skin. In addition, huge deposits of copper,oil and timber hugely exceeded the benefits. currently, it is agreed that the purchase is over 7 times profitable.The fact that the purchase proved profitable implies that the secretary of state was ahead of several of his many critics.
