How Was Ocean Shipping Transformed by the Mid-Nineteenth Century

question 37

Multiple Choice

How was ocean shipping transformed by the mid-nineteenth century?

• A)There were more efficient, powerful engines.
• B)The average size of freighters increased from 200 to 7,500 tons.
• C)Steel replaced wooden hulls.
• D)Propellers replaced paddle wheels.
• E)All of these are correct.

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