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.
Nelson Mandela was referred as one of the great figures in the past century for many reasons. First of all, Nelson Mandela was an anti-apartheid leader who became South Africa's first black president. Second of all, major events and achievements that Nelson Mandela consummated in his life is in 1952, Mandela leads the defiance campaign which encouraged people to break segregation laws and he passed an exam in order to be an attorney, and with Tambo, establishes the first black law partnership in the country. In 1961, he helps establish ANC guerilla wing, Umkhunto we sizwe, or spear of the nation. And last but not least, in 1994, Nelson Mandela became the first black president after democratic elections as an achievement that will never be forgotten in black history.
Answer:
B
Young people became more independent
Horizontal integration is the acquisition of a business operating at the same level of the value chain in the same industry. Hope this helps
It was during the presidency of James K. Polk (11th president of the United States) that much of Manifest Destiny took place.
