Sociologist Robert Park studied A. the history of radio broadcasting. B. how newspapers helped immigrants to the U. S. adjust to their environments and taught them the customs and opinions of people in their new home country. C. the role the Internet played in the aftermath of the September 11, 2001, tragedy. D. rock music as a social problem.

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.

answer; archaeologists;

answer; 55-85;

the first one you have to divide thenn add then multiply then add but mabey pemdaz pie equals 3.14 duuuhhh