How did geography affect the Greeks?

It effected the trade and travel.The mountains in the area made it very difficult for travel, it could take days! The mountains also made it hard to combine all of Greece's communities (small settlements) together. The seas were actually a very good thing in Greece. Since Greece's land was not fertile enough, they had to fish instead, so Greeks were known for being fisherman back then. The only thing that Greeks grew back then were olives.