Geography had a major influence on the rise of city-states in ancient Greece. The terrain isolated communities and provided protection from invasions. The city-states established through the Mediterranean and Black Seas. They also established along these routes.

Ifound this on google “solar system formation. scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star (called a supernova). this explosion made waves in space which squeezed the cloud of gas and dust.” i hope this you for what your looking for.

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