Case Studies:
Studying or recording one subject, and/or the subject's life and developments over long periods of time (sometimes over the course of their whole lives)
Surveys:
A study tool to collect data amongst several individuals in a population. May be used to find out factual information, or simply one's opinion on a certain topic.
Naturalistic Observation:
Observing subjects in their natural environments! (Like observing a child's behaviors at home, where they feel most comfortable. When observing in places where they may not be comfortable, behavior of the subject is due to change.)
Answer:
Atlantic slave trade
Explanation:
the Atlantic slave trade brought millions of Africans to work for new developing countries, the others while they brought many people, those people weren't African
Answer:
Operation costs are significant in larger cities because of the size of the city that requires more taxis to complement the cities' size. Therefore, taxicab industries will guarantee that the trips made by each taxicab incur minimum expenses, resulting to the economies of scale.
Explanation: