Final answer:
Canals and railroads were crucial for the nation's growth as they provided efficient transportation and could carry more goods than ships and steamboats.
Step-by-step explanation:
Canals and railroads played a significant role in the growth of the nation during the 19th century.
They allowed for efficient transportation in areas where there were no waterways, providing a reliable means to move people and goods across the country.
Moreover, canals and railroads carried more goods than ships and steamboats, making them crucial for economic expansion.
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