When geologists want to study an active earthquake fault, they often rely on a trenching study. ... They brace the walls, if needed, to prevent cave-ins, then they climb down into the trench and carefully map its walls, looking for signs of past earthquakes and ground movement.
I believe a=128/15
I hope this helped a bit~
It depends on how fast your travelling...
The answer is b because I just took my test and got it right so good luck
The correct answer is REGION
The term is used in political geography to explains a particualr area with definable characteristics and not always limted to governments and boundaries. A region often has a similarity in terms of governance,climate,terrain and language.