Part1:
Europeans drafted and pressed Africans into labor because Europeans had gun powder. Gun powder and an immense amount of resources, they where able to enslave and brought africans to America to be used as For hard work and labor an agricultural purposes.
the loss of potential gain from other alternatives when one alternative is chosen.
After World War II the Communist Party lead by Mao Zedong gradually succeeded in gaining majority support due to its practice of redistributing land among peasants.
During the late 1800s, the Chinese immigration rate decreased as a result of US government legislation.
James took the steam engine design of a man named Thomas Newcomen and made it more efficient.
Hope it helps C;