Answer:
Joseph Lister successfully introduced carbolic acid (now known as phenol) to sterilise surgical instruments and to clean wounds. Applying Louis Pasteur's advances in microbiology, Lister accomplished the use of carbolic acid as an antiseptic, so that it became <u>the first widely used </u><u>antiseptic in surgery</u><u>.</u>
The types of experimental research design are determined by the way the researcher assigns subjects to different conditions and groups. They are of 3 types, namely; pre-experimental, quasi-experimental, and true experimental research.
AAF stands for Alliance of American Football. Its a professional football league. I hope this answers your question <3