Well I see no documents but I can tell you Americans wanted to expand westward they even created a thing called "Manifest Destiny"
It was a monarchy because it was under a kingdom
If an important resource, such as oil, becomes unavailable, the production possibilities curve a. shift inwards.
"The production possibility frontier (PPF) is a curve on a graph that depicts the possible amount that can be produced or made of two products, if both are based upon the same limited resource for their creation. The Production Possibility Frontier is also termed as the production possibility curve. If it shifts inwards, it means the economy is shrinking due to a collapse in issuing resources and production capacity."
"The production possibility curve (PPC )is necessary because it helps in indicating the maximum possible production of items , in fixed resources. In macroeconomics, economists study and support a country or other organization's economic activity with its help."
To learn more about Production Possibility Curve,
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Its 2. 2800 BC - 2701 BC i guess that my answer is correct.
