Answer:
Greece's steep mountains and surrounding seas forced Greeks to settle in isolated communities. Travel by land was hard, and sea voyages were hazardous. Most ancient Greeks farmed, but good land and water were scarce. ... Many ancient Greeks sailed across the sea to found colonies that helped spread Greek culture.
Explanation:
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The answer is <span>amount of pressure placed on it during formation
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Plate tectonics,millions of years of the earth being pushed up by earthquakes