A. The African population nearly doubled, the European population dropped greatly, and millions of Native Americans were sent to Europe as slaves.
The LEAST likely choice is definitely “Reduced amount of agricultural land in production due to higher crop yields per acre”.
Indeed, corporations would keep the existing land allotting structure to maximize profit since demand is so high that even if all the existing doubled, demand would still be very high. Additionally, they lobby intensely Congress for anything they can get and subsidies are part of that. Finally it is arguable that the yield per acre would be that high as GMO crops have been found to actually impoverish soils in several cases (research is still ongoing and not conclusive yet).
Answer:
Roaring Twenties, 1920–1929. Great Depression Era, 1929–1941. World War II, 1941–1945. Post-war Era, 1945–1964. Civil Rights Era, 1965–1980. Reagan Era, 1981–?? Timeline · v · t · e. The Great Depression began with the Wall Street Crash in October 1929. The stock market ... The Depression also resulted in an increase of emigration for the first time.
Explanation:
The causes of the Great Depression in the early 20th century have been extensively discussed ... Once panic and deflation set in, many people believed they could avoid .... During the Roaring Twenties, the central bank had set as its primary goal .... Marxists generally argue that the Great Depression was the result.
The Soviet Union - they were the cause and driving force behind Communism in Eastern Europe from the 1920/30s into the 80s. Without their military power and influence, communism in Eastern Europe fell away.