The election of President Abraham Lincoln was the final straw that caused the South to secede from the United States. Hope this helps! :)
I think its a because its is a generator
Since free trade allows the business market to reach overseas outside their own nations, many business man seek to sell and cooperate with the other nation's business cooperation in order to expand their market and gain more profit. This urged the economy to become global with the economic exchange across countries.
hope it helps!
The Olmec colossal heads are stone representations of human heads sculpted from large basalt boulders. The heads date from at least 900 BC and are a distinctive feature of the Olmec civilization of ancient Mesoamerica. The boulders were brought from the Sierra de los Tuxtlas mountains of Veracruz.
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Its the 3rd one. they made terraces in the mountains to create more farmable land