The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________?? March 31, 2022March 31, 2022 administrator A. 1120 ftB. 120 ftC. 56 ftD. 100 ftCheck AnswerC. 56 ft Share the PostRelated Posts:The cracking sound heard when dry hair is combed…An aeroplane covers a certain distance at a speed of…Find the ratio of the curved surfaces of two…Ordinary damages will be awarded in cases whereIn modulo-2 arithmetic, we use only ________.A public company must have at least————- directors…