Slavery solved the increasing labor problem the Spanish had in the Americas.
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transform them into colonies, or lands controlled by another nation
Answer: The rivalry between creoles and peninsulares started because creoles wanted to be independent. In that time, Peninsulares were Spaniards who were born in Spain and came to rule over America. on the other hand, creoles were Spaniards who were born and bred in the Americas, So they had social power. Creoles desired to have more power and also rule over the Americas and the war between them started.
I believe you are referring to the evacuation of Saigon (Fall of Saigon) on April 30, 1975. If so, the correct answer is c. The U.S. evacuated Vietnamese whose lives would be in the greatest danger if they were to be left behind.
Prior to the Civil war, the West attracted many immigrants because land was cheap and it was seen as the land of opportunity. The correct option among all the options that are given in the question is the first option. There were many forested lands and those when cleared can proved good for cultivation.