Answer :

An advantage of the geography in Greece, is mainly climate. The climate has very high temperatures, so as to make the Greeks very much outdoors men. In fact, because of the temperature most of their town meetings and holdiays were celebrated outdoors. Another advantage would be that the Greeks were VERY close to sea, so therefor it was easier to grow crops, and have transport. That is why they are actually really famous for ship building.
Some disagvantages is that the Greece georgraphy is nostly mountanious and has lots of hills. This therefor made the land for grwoing crops scarce. These are some advantages and disadvantages of the grography. Hope it is useful!