How are the meaning of glimmer and trace related

Read the excerpt from heart of a samurai. the water was so clear, he could see straight to the bottom. a snail was making a path like a shiny ribbon slowly unfurling on the sand. what does the author use the most precise words to describe in the excerpt? the water’s movement the water the snail the snail’s path

Answer all plzz it’s due tomorrow i need it

In twelve years a slave, when the passengers on the ship learn robert has smallpox, what is their reaction? “panic-stricken” “indifferent” “relieved” “oppressed”