1)Steve jobs
2)mark zuckerberg
3)bill gates
4)sergey brin
5)larry page
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When the colonies were under British control, the British did not want the colonies to intermingle with trading with other countries. Therefore, they were only allowed to trade with the mother colony (Britain). Then Britain traded with other nations.
Generally speaking, "d.Language barriers" were not a problem faced by multi-ethnic countries in Africa after independence, since relative to some of the more serious problems, like genocidal violence, this was not an issue.
