Answer:
1 -> act
2 -> set
3 -> stage directions
4 -> prop
5 -> playwright
Explanation:
Pretty self-explanatory. A playwright is someone who writes plays. Actors use props on stage during their performances. Stage directions are instructions given to the cast during a play. A set is a display of objects for a cast to perform. An act is in plays that actors play.
No, they do not have to be written by a historian.
Burning is a chemical process that involves a substance being broken down and changed into different substances so It is.
For the other question you can determine it by it’s reaction to the heat.