Which revision of spencer's essay best uses a formal tone?

Which of the following is a secondary source? o a biography of a playwright ob. historic photograph o c. antique weapon od. census data and statistics

According to aristotle, what is an "artistic" proof?

Because genetics is now progressing so rapidly, it is revolutionizing medical research. identify the subordinate clause in the sentence. a) is now progressing b) is now progressing so rapidly c) it is revolutionizing medical research d)