D. Czechoslovakia is correct. All others had been concered by Hitler and Nazi Germany.
The professional consequence
The Columbian Exchange lead to an increase in the demand for skilled labor in Europe, because D) an abundance of raw materials from the new world needed to be made into finished goods. Many raw materials and new products were brought over to Europe from the Americas which needed to be made into finished products.
Well, if a primary source says that a country one a historic battle, and we find rope and unfired weapons and a large amount of bones inside of the rope area, then the primary source is then questioned.
Answer:
One of the saddest facts about World War I is that millions died needlessly because military and civilian leaders were slow to adapt their old-fashioned strategies and tactics to the new weapons of 1914. New technology made war more horrible and more complex than ever before. The United States and other countries felt the effects of the war for years afterwards.
The popular image of World War I is soldiers in muddy trenches and dugouts, living miserably until the next attack. This is basically correct. Technological developments in engineering, metallurgy, chemistry, and optics had produced weapons deadlier than anything known before. The power of defensive weapons made winning the war on the western front all but impossible for either side.
