Answer:
Universities.
Explanation:
In medieval times, higher learning institutions began to become more important, with scholars desirous of better education attending schools or universities to attain such knowledge. These universities would excel in the study of arts, medicine, law, or medicine.
These universities were established in the kingdom of Italy and then spread to England, Portugal, and Spain. Initially, these universities would be based on Catholic schools but then evolve to a much wider scope of 'education'. The first universities were more concerned with philosophical studies, between students and masters, and 'classes' taken in big stadiums or halls. Later on, many modern universities would be established with western style organizational forms.
B.extinction of large animals
The primary responsibility of air traffic controllers is the separation of aircraft. They control traffic in and around airports and in the terminal and en route airspace in between. Controllers speak directly with pilots, notifying them of traffic or weather in there vicinity.
