The stock market crashed and caused all the companies to put their employees out of work and left millions jobless. People would line up everyday at the break of dawn to wait in line for job openings.
Answer:
The effective ingredient was likely quinine from the cinchona tree.
Explanation:
Quinine is obtained from the bark of the cinchona tree and it is used in the treatment of malaria. Malaria is transmitted to humans by several species of mosquitoes. In South America, Malaria is mostly transmitted in rain forest areas in northern countries. Therefore, in the situation we are studying here, the member who became ill might have been infected. The quinine present in the cinchona bark made him feel better.
Answer:
The increased demand, many more slaves were needed to grow cotton and harvest the fields. Slave ownership became a fiery national issue and eventually led to the Civil War
Explanation:
Before the cotton gin, cotton was a troublesome crop. It required a lot of work.
This changed dramatically with the advent of the cotton gin. Suddenly cotton became a lucrative crop and a major export for the South. However, because of this increased demand, many more slaves were needed to grow cotton and harvest the fields. Slave ownership became a fiery national issue and eventually led to the Civil War.
Diagrams; equations; computer simulations
