I believe the answer is: They are based on the arbitrary borders of old European empires
African continent was colonized by different european empire. To avoid conflicts among the european, they divided africa into several territories and dtermine which country has the jurisdiction over each territories. After African nations gained independence, they still use this separation as borders to differentiate one country with another.
Answer:
Make them suffer a little: ride backward in elevators all week.
Explanation:
Mental stress is the capacity through which a person deals with stress day to day life. Face the challenges and perform well in the situation. building mental fundamentals are the strategy to cope up with the situation and live a best or healthy life. For example when we go for a gym where we built our physical strength. A person should use some mental health tools to strengthen their mental abilities. try new things and cope up with any difficulty that life throws on you. A person should build resilience strength and well beings that increase positivist in life and increased self-esteem of a person. Well being, optimism these are other self-esteem strategies that increase positivist in a person towards in life. positive regard creates a good relationship between individuals, groups of people and even in the community.