Answer:
In Africa not all places are able to enforce laws or provide basic goods and services to its citizens because of high crime rates, political corruption, ect.
Explanation:
Alexander spread Greek technology and ideas through his empire where people talked and visited from all areas to see what had been done.
Challenges for growing crops are you don't know if it will be successful, you have to have enough water, the dirt has to be fertile, and the weather may affect how the plant grows.
Hello There!
In Chicago, this building was renamed to the "Willis Tower" They planned on reintroducing this building to the world.
The northern is most likely tropical climate
