What is science?in the chemistry ​

Chris would like to conduct a study on the effectiveness of a new substance-abuse treatment program. he has a sample of participants go through the program and he uses as a comparison group people who did not volunteer for the program but were eligible. chris has used a(n) design for his study.

Abrief, "first-step" presentation of a work to be completed is called a

One eoc function is to provide coordinated support to incident command. true or false