Asubstance is composed of only one kind of atom and can't be separated into simpler substances or converted into another substance by chemical processes. under which category would you classify this substance?

the answer is luis.

  someone can be considered a dynamic person by being energitic and forceful, but other aspects of being dynamic is having a lot of ideas and enthusiasm. luis his little brother with his homework, and later he teaches his younger brother how to ride a bike without training wheels, which takes a lot of patience, dedication and involvement.