Why did European countries establish colonies in Africa during the 19th century? a they were rivals during the cold war

b they wish to expand their economies

c the American revolution made it possible

D the Africans kingdoms asked for Europe help

I'm pretty sure the answer is b.)

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

health and medicine because people are dying from not being healthy or not strong enough medicine