56 7 8 9 10 time remaining 57: 20 read the excerpt from "the weary blues." he made that poor piano moan with melody. o blues! swaying to and fro on his rickety stool he played that sad raggy tune like a musical fool. sweet blues! coming from a black man's soul. o blues! in a deep song voice with a melancholy tone i heard that negro sing, that old piano moan— "ain't got nobody in all this world, ain't got nobody but ma self. i’s gwine to quit ma frownin' and put ma troubles on the shelf." what is the effect of repeating the phrase “piano moan” in the poem? it sets a sad, mournful tone. it adds a cheerful, melodic chord. it adds an open, musical sound. it sets an angry, discordant tone

When you wear your earbuds while working out, your sweat damages them and they die sooner

Which best compares the authors’ purposes in silent spring and “save the redwoods”? both authors want readers to protect human rights. both authors want readers to focus on saving trees. both authors intend to entertain readers with their essays. both authors intend to convince readers of their viewpoint.

The “big dig” the “big dig” (the central artery/tunnel project) has been complex and challenging. located in boston, massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. what is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in boston’s financial district. construction crews used “clamshell excavators” during this dig. these machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. finally, steel beams were lowered into the trench and concrete was pumped in. one problem that engineers faced while constructing the tunnel is the fact that the soil beneath boston is extremely loose and soggy. engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. to strengthen the soil even further, a special type of glue was injected into the ground to with the consolidation of the soil. 23 which phrase best defines the word excavator as used in the passage? a. a device used to measure underground temperatures b. a device used to level uneven surfaces c. a device used to move heavy objects d. a device used to dig holes