dr. samuelson wants to study the impact of social media on the friendships of 20-, 40-, 60-, and 80-year-olds. he plans to follow each age group for 10 years and study their use of social media and their relationships. what type of study is dr. samuelson conducting?

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

balearic sea - is a body of water in the mediterranean sea around the balearic islands. baltic sea - is a mediterranean sea of the atlantic which is enclosed by scandinavian and baltic countries. barents sea - is a marginal sea in the artic ocean located off the northern coast of norway and russia.

a) they had recently endured the tyranny of the british king, parliament, and its royal