Which clause from the passage uses passive voice?
Furthermore, less than 10 percent of these devices are recycled . . . (paragraph 8)

When novelist Peter James published his thriller Host on two discs in 1993 . . . (paragraph 5)

. . . they choose to experience the physicality of the book . . . (paragraph 7)

. . . jet passengers reaching cruising altitudes often reach for a paperback or a print magazine. (paragraph 1)