Meat could be transferred in refrigerator cars over longer distances, faster, and in bigger quantities. This made the ability for meatpacking to be national.
Answer:
In Lincoln's mind, the railroad was part of the Civil War effort. The new line would support communities and military outposts on the frontier. ... A transcontinental railroad, Lincoln hoped, would bring the entire nation closer together – would make Americans across the continent feel like one people.
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The answer Is: Source two
A famous historian who is an expert on the American revolution would know more about the signing of the declaration then a film producer.
Answer:
protect American citizens from threats. i think
Explanation: