Jennifer is an arson investigator. She arrives on the scene of a fire. The first responders suspect arson. In what order should Jennifer take the following steps to perform the investigation?

Establish a command post.
Preserve evidence

Establish a crime scene perimeter.

Ensure the safety of all on the scene.

Note observations about the scene.

What are the three groups of atoms that make up amino acids called

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?