There are more evidences available on the mediaeval period as compared to the ancient period why?

Well for one the ancient period was well...anceint and two the midevil people were more advanced and could build larger structurse and more surer ways of preserving the past like writing and real hard cover books. hopes this helps you :)

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.