Rome's location on the Italian peninsula, and the Tiber River, provided access to trade routes on the Mediterranean Sea. As a result, trade was an important part of life in ancient Rome. ... Later, the Roman armies used these same routes to conquer large amounts of territory and expand the empire along the Mediterranean.
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Answer:
The Suez Canal changed the lives of Asians by creating a passage from the North Atlantic to the Indian Ocean without having to go all the way around Africa. The Suez Canal has a great use for international trade
C. Decolonization is your answer.
Note that the passage gave the phrase "Many western... nations no longer had the enthusiasm or resources..." & "...westerners believed that people had the right to self-determination & self government." This meant that they would start instituting a system of giving power to the natives while slowly taking away their influence.
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It increased the wealth of the country and made good food easily accessible to all.