Only 1/4 (25%) of Greece is arable (farmable) land, so the Greeks relied heavily on fish and other seafood for survival. Also, olive trees are native to the area so their diet was and still is based on a lot of dishes involving olives, olive oil, and wine.
The Nile River.
Hope this helps.
<span>1. a powerful and centralized government
2. the development of written language
3. simple art that depicts daily life
All the above points can be considered as the major characteristics of a true civilization.
And Organized religion, Job specialization and social class, Architecture and infrastructure are some other features of a true civilization.</span>