I am not completely sure, there may be different answers to this question:
Canadian Shield is not suitable for farmland, because it is very rocky.
Great Plains haven't been suitable in the past, because the land is very dry.
Greenland is covered in ice, although there are many places where farming is very successful.
Yucatan Peninsula is more or less a swamp today, but farming is possible.
Answer: Excessive drinking by adolescents aged 20 and younger has been related to brain injury and impaired brain function, according to medical studies. Early drinking before the age of 21 raises the risk of potential substance misuse, traffic accidents, and attacks, among other alcohol-related concerns.
What first comes to my mind is that one or more rivers feature very prominently in these civilizations: the Nile in the Egyptian and the Tigris and Euphrates in the Babylonian.
