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:
I can't write an entire summary because there isn't really a script but I can give tips. Just basically write about 2 sentences for each topic.
Explanation:
Answer:
The answer is the US and the Soviet Union.
Explanation:
After World War II, The US and the Soviet Union had engaged in the Cold War for years after WWII.