Which imaging technique uses sound waves rather than electromagnetic waves ?

Why do people live together and form societies

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

Read this passage from william faulkner's the sound and the fury: i says no i never had university advantages because at harvard they teach you how to go for a swim at night without knowing how to swim and at sewanee they dont even teach you what water is. i says you might send me to the state university; maybe i'll learn how to stop my clock with a nose spray and then you can send ben to the navy i says or to the cavalry anyway, they use geldings in the cavalry. which best describes the narrator's tone in this passage? a. bitter b. angry c. sarcastic d. all of the above