Can someone recommend a page to make concept maps?

Why do you think electric energy for households is generally supplied by power plants instead of by an electric generator at home.

Based on the narrator's comments about living with the widow douglas, the reader can infer that a) the narrator doesn't care much for civilization and its strict rules. b) the narrator admires and wants to become more civilized and refined. c) the narrator is extremely religious and of high moral standing. d) the narrator desires to become a productive member of society.

Students who utilize the" read, underline and eliminate" strategy are more likely to get better test grades. why do you think this is so