Mexico City's most pressing environmental issue is A)mountain erosion.
B)dangerous air pollution.
C)erosion along the coastline.
D)cutting down of the rainforest.

its

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.