False! Ptolemy developed the geocentric theory. Copernicus was the first person who proposed the Heliocentric theory.
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The Texas economy did not truly feel the effects of the oil boom until 1942, when global war caused a new demand for oil.
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C. Motivates producers or consumers to take action.
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These principles were popular sovereignty, separation of power, rule of law, checks and balances, and federalism.
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