The Greek city-states start colonies around the Mediterranean because:
The Greek city-states were made up of ancient Greeks who were explorers and conquerors who moved from place to place and as a result of this, they needed to find a new colony.
The Greeks needed to find a solution to their:
As a result of this, establishing their colonies in the Mediterranean helped them to solve most of thee problems.
Therefore, the correct answers are options A, C and D
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