B.
The Europeans discovered North and South America.
C. Dred Scott did not gain his freedom from his suit. judge Taney ruled that he wasn't a person.
A. Peace Corps
but pretty much almost all of them
medical is American Red Cross
World Bank gives loans to countries that need them
US Agency for international development helps developing countries
Peace Corps helps provide peace too all countries and settle disputes
It is important for Latin America to diversify it's economy because for one thing, L.A. wouldn't have to take the risks of a failed business by relying on one crop or resource. Another reason is that more diverse crops or resources brings in a steady amount of money with varied products, and L.A. would be taking their chances by just relying on one crop/resources.
Answer:
The answer is a double-blind study.
Explanation:
A double-blind study is a research method in which neither the participants or the researchers are aware about which group is receiving the treatment. This is done in order to avoid biases such as the placebo effect, as well as preventing accidental cues given by the researchers.
The greatest advantage of this approach is its high validity.