Read this passage, which was written by a Spanish explorer in the 1500s.This great city of [Tenochtitlán] is situated in this salt lake . . . . There are four . . . entrances to the city, all of which are formed by artificial [walkways] . . . . The city is as large as Seville or Cordova; its streets . . . are very wide and straight . . . . All the streets at intervals have openings, through which the water flows . . . and at these openings, some of which are very wide, there are also very wide bridges, composed of large pieces of timber, of great strength and well put together; on many of these bridges ten horses can go abreast.This quotation describes