When buildings collapse, it is extremely difficult to safely locate and rescue people trapped inside. Victims may be wedged into small spaces, and unstable rubble could collapse on rescue workers. An alternative to human rescue workers may be robotic cockroaches. Real cockroaches are protected by strong yet flexible exoskeletons. They can also flatten their bodies through tiny cracks. A robotics researcher from Harvard University and a biomechanics expert from the University of California, Berkeley, were inspired to create mini robots that have the same features. The roach robots can squeeze through small spaces and skitter over unstable environments. Fitted with cameras and microphones, they could be used in disasters to locate victims. What is the main idea of the passage?

Which two elements does this excerpt from a christmas carol by charles dickens contain? "a small matter," said the ghost, “to make these silly folks so full of gratitude." "small! " echoed scrooge. the spirit signed to him to listen to the two apprentices, who were pouring out their hearts in praise of fezziwig: and when he had done so, said, "why! is it not? he has spent but a few pounds of your mortal money: three or four perhaps. is that so much that he deserves this praise? " "it isn’t that," said scrooge, heated by the remark, and speaking unconsciously like his former, not his latter, self. "it isn't that, spirit. he has the power to render us happy or unhappy; to make our service light or burdensome; a pleasure or a toil. say that his power lies in words and looks; in things so slight and insignificant that it is impossible to add and count ’em up: what then? the happiness he gives, is quite as great as if it cost a fortune." he felt the spirit's glance, and stopped. "what is the matter? " asked the ghost. "nothing particular," said scrooge. "something, i think? " the ghost insisted. "no," said scrooge, "no. i should like to be able to say a word or two to my clerk just now. that's all."

What phrase from "speech after being convicted of voting" most engages the audience's sense of pathos, or their emotions?

Which word best describes the mood in this sentence? lucia was aglow as she bounced into the room with stories about her summer vacation.