Which part of the electromagnetic spectrum astronomers understand that the crab nebula contains hydrogen?

gamma rays
microwaves
radio waves
visible light

What do the words “briefer,” “too beautiful to stay,” and “sleep of death” in the last stanza of wylie’s prom suggest about nature’s bounty and a life of plenty and ease?

Read the excerpt from "the love song of j. alfred prufrock." and indeed there will be time to wonder, “do i dare? ” and, “do i dare? ” time to turn back and descend the stair, with a bald spot in the middle of my hair— [they will say: “how his hair is growing thin! ”] my morning coat, my collar mounting firmly to the chin, my necktie rich and modest, but asserted by a simple pin— [they will say: “but how his arms and legs are thin! ”] do i dare disturb the universe? in a minute there is time for decisions and revisions which a minute will reverse. which lines indicate that the speaker is concerned about what others think of him?

2points which popular story includes the archetype of a character that begins as an underdog, but eventually wins against all odds? o a. the wizard of oz o b. the odyssey o c. the myth of romulus and remus o d. jack and the beanstalk