The United States emerged as a great industrial power following World War I -- the most powerful nation in the world, in fact.
The growth of the United States as the world's leader in industry had been proceeding rapidly already prior to the Great War (which we know as World War I). By 1900, 38% of the world's wealth was held by the United States. By 1914, the US produced as much coal as Britain and Germany combined, as well as producing over 40% of the world's iron.
But before World War I, the United States tended to take an isolationist stance toward other nations. World War I advanced the US into superpower status as a nation that used its industrial might to involve itself in global affairs.

- <u>The definition of a market economy is one in which price and production is controlled by buyers and sellers freely conducting business</u>
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- <u>the United States economy where the investment and production decisions are based on supply and demand.</u>
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On December 8, 1941, the United States Congress declared war (Public Law 77-328, 55 STAT 795) on the Empire of Japan in response to that country's surprise attack on Pearl Harbor the prior day. It was formulated an hour after the Infamy Speech of US<span> President Franklin D. Roosevelt.
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The answer is letter D. Camillo Benso Cavour. Cavour wanted
to unify Italy after Mazzini and Garibaldi had tried to unify Italy.Cavour was a firm believer of constitutional
monarchy and founded the news Il
Risorgimento". The paper was created to help Italians to voice out
their right of sovereignty.