How did the geography affect the way early people lived in ancient Greece?

The geography affected the way early people lived in ancient Greece by isolating the people from each other.

Explanation:

Due to the high mountains and the hilly terrain, problems of communication and interaction were present, especially in ancient times where technology hasn't fully developed yet. Going from once place to another would create major challenges since the terrain is hard to move through. It wasn't easy to deliver resources, or just a simple message. The geography also affected transportation of goods, crops, and livestock. These are all major factors of environmental determination. Besides those determining factors, geographical formations such as mountains, seas, and islands formed natural barriers between the greek city-states. This forced many to settle along the coast.