In this case, Mila is using a survey
Survey is a data gathering method that directly asked the subjects to filled in the data needed by the researchers.
This method since tend to be really efficient if being done in private manners within the subjects that directly involved with the things that wanted to be examined
Yes this is why all around the pacific ocean there are plate intersections and why the area is called the "ring of fire."
The letter that identifies the country of Napol is N.