If you mean a country or company has more goods than they need to sell, that is called a surplus
The Manhattan project is when they were building nuclear weapons for wwii
Answer:
3rd class country maybe...
I just learned about that.
You might be talking about the Out-of-Africa Theory or early
migration of early modern human species out of Africa. According to this
theory, our modern human ancestors left Africa about 200,000 years ago. They
left in two waves; one died out or retreated while the second populated the
world. At that time, Africa experienced very long droughts, so early humans
have to migrate to other greener areas. Therefore, Africa at that time is not
forested and humans did not move out onto savannah regions.