Which range runs along the east coast of australian?

The Great Diving Range

Explanation:

  Australia's terrain is composed of modest altitudes. In the eastern portion, the  Great Dividing Rang rises, consisting of Paleozoic and Mesozoic terrains, which were uplifted in the Tertiary era and whose culminating point, Pico Townsend, is 2,211 m high  It is extended from Cape York down to Victoria in the southeast and consists of crystalline terrain and is followed by the eastern coast.

i'm sure the answer you are looking for would be

a. an ice age

hope this contact me if this didn't or you need with more answers : )