Cfcs were chemicals commonly used in refrigeration and as propellants in aerosol cans. in 1974, a research study discovered that cfcs were leading to a dangerous hole in the ozone layer. by the late 1980s most cfcs were banned as a result of the research. which statement best describes a possible way that societal decisions were impacted by the 1974 research study? cfcs were commonly used in refrigeration. cfcs were replaced with other products. cfcs were causing a large hole in the ozone layer. cfcs were the focus of a research study.