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Manchuria was invaded in 1930 by the Empire of Japan, contributing to the development of a puppet state and a pact with Nazi Germany. The Manchuria was only vacated with the end of the second war.
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The protective tariffs allowed Northerners to compete with the British manufacturers. This was opposed by the Southerners. It is because having the tariffs made their European trading partners angry. The tariffs created a rift between the Northerners and the Southerners.
Answer:
B) European imperial rivalries and competition fueled empire building in the new world.
They were hit by an asteroid about 65 million years ago
