The spread of diseases from the new world to Europe and vice versa
Not sure what’s the answer but try this. One promblem in the Southwest is the Asia water pollution.
I think the answer to this is B
Answer:
1. jerusalem - former capital of Judea often called the Holy City
2. knights - men with honorable rank who pledged to do good deeds
3. hospitalers - crusaders who were part of an organization that gave medical aid
4. alexandria - a city second and importance to Rome located on the Delta of the Nile River
Limiting factor can be birth rate or death rate
