Reaper and steel plow were the machines invented by Cyrus McCormick and John Deere that made large-scale agriculture possible, especially on Midwestern prairies.
B) Reaper and steel plow
<u>Explanation:</u>
In the 1800's people used to do all the chores with their hands hence, it made farming a tough job and a lot of time consuming activity. During the industrial revolution, Cyrus McCormick invented a mechanical reaper, which would help reap big farms in very less time.
The steel plow played a very important role in the industrial revolution as the wooden plow used to be weak but John Deere's invented steel plow was strong and broke soil easily.
Answer:
US immigrants created significant numbers of enclaves because of the hostility they faced (not the other way around). In the 1800s, unemployment levels weren't a significant concern relevant to this issue, and overpopulation worries weren't fully realized as a contemporaneous issue.
Answer:
Some of the major issues that Abraham Lincoln faced while he was in office included the secession of many of the Southern states, the outbreak of the Civil War, worry over whether the Emancipation Proclamation could withstand a legal challenge, and a low approval rating from his constituency.
Answer:
C. governments' worries about its use as a tool for political change.
Explanation:
Answer:
They hold the most people
