Here, the second part of the text has been divided into 8 segments, numbered from 1-8. Click on the segments that contain at least one error and then look at the solution.
(1) In each area, there are antenna towers positioned.(2) There is more antenna towers (3) in urban areas than in rural areas. (4) (...) These antenna towers (5) detect a signal sent by your cell phone (6) and determine where is the closest tower. (7) The system which we use to locate you (8) is the triangulation.
