Decreased the amount of shipping time and increased the amount of farm and merchant goods that could be shipped. a. airplanes c. river boats b. steamboats d. all of the above select the best answer from the choices provided

The correct answer is A) Airplanes.

Airplanes decreased the amount of shipping time and increased the amount of farm and merchant goods that could be shipped.

Due to the use of new technology and cargo machines, the arrival of Airplanes helped to decrease the amount of shipping time. Airplane represented an innovation in cargo. They had a big space for shipment and products such as farm goods and merchant goods of all types and sizes could be transported in a secured way in less time, optimizing the costs of transportation and the frequency of the shipments.

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]

c. free trade can lead to low pay for workers in poorer countries.