Answer:The United States drops an atomic bomb on Hiroshima. The Soviet Union declares war on Japan and invades Manchuria. The United States drops an atomic bomb on Nagasaki. Having agreed in principle to unconditional surrender on August 14, 1945, Japan formally surrenders, ending World War II.
Explanation:
Answer:
B) The new railroad made travel faster and easier resulting in accelerated westward expansion.
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C more American workers relocating to urban centers
D. Causation
This is because causation means when one thing is caused by another, even in history