People could use coal to power factories.
Answer:
The Monroe Doctrine, in asserting unilateral U.S. protection over the entire Western Hemisphere, was a foreign policy that could not have been sustained militarily in 1823. Monroe and Adams were well aware of the need for the British fleet to deter potential aggressors in Latin America.
A canal is a man-made waterway used for transportation.
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C) Too many people were already living in rural or country areas
