- - Common interest help to unify the many different people.
Answer:
Generalized anxiety disorder
Explanation:
GAD is a psychological disorder. It is about excessive worry and persistent worry about the number of different things. People who suffers from GAD generally anticipated disasters and excessive worry about money, family, health, work, or school grades. They may worry more about the concern situation than it is in reality. They analyze the situation worst even when there is not any apparent reason for the situation. GAD diagnosed when the person has no control over the situation and it is persistent last six months and has three or more symptoms. People, with GAD don't know how to stop the cycle of worry and feel that is beyond their reach. The people know that their worry is more intense than the situation occurs. The exact cause of GAD is unknown, but there is another factor contributing to it as family, genes, environment, etc. people with GAD can function socially. Sometimes they avoid the situation just because, they from disorder or maybe they don't want to take the opportunity due to their worry about a social situation, travel promotions, etc.
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.
The answer is more because according to the definition of the theory of social facilitation, social facilitation is the tendency for people who are being watched or observed to perform better than they would alone on simple tasks (or tasks they know how to do very well due to repetition).
Answer: more