Which economic activity was the basis for most of the wealth and power of the west african empires of ghana and mali

Compare the roles of the three countries of the central powers.

How did its location near the sea most contribute to the growth of ancient greece? a. by supplying water for irrigating crops b. by providing easy access to trade routes c. by creating a natural barrier from enemies d. by generating power for watermills

In one paragraph, describe how you think schools should handle student content posted on the internet? when should the school be able to censor what a student puts online? when should they not be able to get involved?