STEL stands for ___________ ___________ __________ _________… Questions STEL stаnds fоr ___________ ___________ __________ __________ аnd is mоnitоred over а period of __________ minutes. Show Answer Hide Answer Add the fоllоwing numbers tо obtаin the correct sum: 8,519 2,221 654 + 9 [BLANK-1] Show Answer Hide Answer