What is the comprehensive definition for "cogen"

Which choice is a major detail from paragraph two? a) the great wall is a large network of several walls and towers. b) the great wall looks like a long wall snaking its way across china. c) the great wall was constructed over hundreds of years beginning in 221 b.c. d) the great wall construction encouraged several independent kingdoms to unite.

•your english teacher has asked you to write a short three-page research paper. which topic is the most narrow? a. water pollution b. how lake pollution affects fish c. how water pollution affects seal d. pollution

Which traits are strongest in your persuasive eassy: ideas, orginization, voice, word choice, sentence fluency, or conventions? (provide textual evidence from your persuasive essay to support your answer.)