Answer:
a process of record of research which detailed consideration given to the development of a person, group or a situation.
Or something that is used or analyzed in order to illustrate a thesis or principle.
Explanation:
Question 50. 27 ( single choice)
Question 51. less illness and disease
Question 52.It's calculated as a function of one's age
Question53.
Question 54.
Question 55.
C
......... pretty
