I think it's Antarctica, but I could be wrong. Hope this helps!
The six are:
the world in spatial terms- focuses on geography's spatial perspective (use maps to study people places and environments)
places region's- physical and human features of a place
physical systems- earth's features
human systems- activities, movements, and settlements
environments and society- how people and the environment interact
the uses of geography-
interpret the past, present, or plan for the feature
More info? if not then things like erosion and plate movements
Answer:
The thing that serves as an important economic activity in the Pacific Rim is B. {commercial fishing}
Explanation:
the current President of Ethiopia is Sahle-work Zewde