The research method that he uses is Interview
<span>He interviewed what society considered as the 'black elites' which is a group of African Americans that are successful in establishing careers/businesses in this country. He used open-ended questions in order to find more deep and opinioated answers.</span>
Signs are very important as they help to in making drivers aware of
particular interchanges, hills and bends, sharp dips in the road and bumps, ice on the road
and other potential driving risks, which ensures that drivers ride safely, hence promoting driving safety.
The correct answer is natural selection
The action of natural selection consists of selecting individuals more adapted to a given ecological condition, eliminating those disadvantaged for that same condition. The most adapted expression refers to the greater probability that a given individual will survive and leave descendants in a given environment.
It is an embargo.
Because embargo means ban on trade.