Which line from the text best reveals how Bezos transformed online shopping? Amazon. com is a vast Internet-based enterprise that sells books, music, movies, housewares, electronics,
toys, and many other goods, either directly or as the middleman between other retailers and Amazon. com's
millions of customers.
O While Amazon. com famously started as a bookseller, Bezos contended from its start that the site was not
merely a retailer of consumer products.
Its considerable online presence is such that, in 2012, 1 percent of all Internet traffic in North America traveled
in and out of Amazon. com data centres.
Its promotion of these devices has led to dramatic growth in e-book publishing and turned Amazon. com into a
major disruptive force in the book-publishing market.

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