Is an example of a democracy

The United States and Nigeria are examples of presidential democracies. The executive branch includes the president and his cabinet. Along with the judicial and legislative branch, the three branches of government work to keep checks and balances, but the president has final say.

Explanation:

they were destroyed coming out of the civil war but after he war they were booming. if you need an in-depth answer follow up with me  

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i'm sure the answer you are looking for would be

a. an ice age

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