Answer:
Food and security.
Explanation:
The presidios faced many challenges such as food and security of its people and struggle to maintain their control from the natives people and save themselves from native people that lives around them because the Spanish comes and captured their lands. Spanish soldier defend the newly captured territories and take on such a difficult job for their country's welfare, prosperity and for expanding influence of their country.
The most accurate words to fill the spaces would be:
Sugar plantations were the backbone ( source ) of the economy.
In 1890, the US Congress passed the ( McKinley Tariff ), which removed tariffs on all foreign sugar imports.
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Answer:
Prepare food, matainsacred fire and the weaving of garments for emperor and ritual use
Explanation:
At first, General Grant and President Lincoln greatly opposed the total war strategy, but Army General Sherman convinced them otherwise. The strategy of total war was to destroy both civilian and military resources.