The Americans controlled the land between the Great Lakes, Ohio River, and Mississippi River.
Answer:
C. Slavery persisted in the region but was weakening
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.
Answer:
<em>Secretary of the navy U.S.</em>
Explanation:
Theodore and Franklin Roosevelt both held the position of secretary of the navy U.S. before becoming president. Theodore in 1897 to 1898 was the secretary of navy by indication of the President William McKinley, while Franklin Roosevelt was indicated by Woodrow Wilson and served from 1913-1920.
