Felix's research focuses on an adolescent who committed a mass murder at his school. felix uses data from the adolescent's school and medical records and interviews the adolescent's friends, family, and teachers. which type of research is felix engaged in?

Then Felix conducts mixed research method .

Explanation:

Explanation:

Felix is recurring to data that exist in the field and points qualities about the student. Also, he is recollecting data through interviews, in that case, the decoding of that resources is a crucial step in his qualitative research.

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.