What was a major cause of the fall of the western roman empire?

In Ap3x, The answer is the one that talks about the invasions

Explanation:

what are local authorities doing to fix the problem

explanation:

the phenomenon that would be cited as evidence of increased economic interdependence between europe and the americas is  the development of mercantilism.

this theory suggests that the wealth of a country depends on its economic assets, or capital.

hope this : )