What 1900's technological invention

allowed the U. S. postal service to deliver

the mail considerably faster than

previous methods?

A. airplane

B. subway train

C. steam ship

D. pony express

A. Airplane

Explanation:

Around 1918, Air delivery, became the new mode of transportation for mail, as it rendered railroad services unnecessary. During this period, the Post Office moved on the airplane bandwagon early, there by, offering air mail service in the early 1900s.

Hence, the 1900's technological invention which allowed the U.S. postal service to deliver the mail considerably faster than previous methods is AIRPLANE.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

d) the lindbergh baby kidnapping

hope this