Answer:
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.
Answer:
From the very earliest of ages, the people were taught that the only way they could get to Heaven was if the Roman Catholic Church let them. Everybody would have been terrified of Hell and the people would have been told of the sheer horrors awaiting for them in Hell in the weekly services they attended.
Explanation: