Answer: I feel like it's D or A
Explanation:
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.
Slave labor during to the Punic Wars affected small farmers in that: It hurt them because large farms who used slaves as laborers could sell products cheaper.
<h3>What were the Punic Wars?</h3>
- The Punic Wars were a series of wars that were fought between the Roman empire and the Ancient Carthage between 264 and 146 BC.
- These wars had a terrible effect on the farmers who were threatened by the larger farms. When the competition became severe for them, they gave up their farms and went to the cities.
Learn more about the Punic Wars here:
brainly.com/question/9108214
No, it is false that much is known about the beginning of Teotihuacan's history, since the archeological history and evidence is scarce--leaving historians to rely on a weak record.
