19th-century cost-saving innovations in steamboat transportation ...

[tichca]

19th-century cost-saving innovations in steamboat transportation included all of the following except
 a. the replacement of steam-powered boilers by coal-burning engines.
  b. the adoption of lighter-weight boats.
  c. increases in the amount of cargo carried per vessel.
  d. learning to operate the boats at night.

Question 2

Andrea Schwatz has argued that the Great Depression was caused by
 a. the fall in the stock of money.
  b. the fall in consumer durable spending.
  c. the fall in investment spending.
  d. the increase in nominal wages.

[Anna]

Answer to Question 1

a. the replacement of steam power by petroleum.

Answer to Question 2

a. the fall in the stock of money.