Logos because it is using statistics and facts to back it up.
Mississippi Solo is a detailed account of a man's trip down the Mississippi River—from Minnesota to Louisiana—in a borrowed canoe. Friends told Harris that paddling the length of the Mississippi River was foolish and dangerous. Harris, however, felt compelled to make this difficult journey.
Answer:
Keep Memorizing all the factures and concepts of the speech topic and memorize it at least 10 times a day