Italian dressing is a heterogeneous mixture because the mixture contain substances of different phase. There are both liquid and solid in the dressing, therefore it is heterogeneous. If it is homogeneous, the dressing will be all liquid (or all solid but I don't think it will taste good anymore). Idk if this is the answer you want.
There are no commas in that sentence. A comma is only used to separate clauses when coupled with a conjunction, or in listing.
The authors in various stories develop characters through other characters dialogue in ways of describing how a character feels towards the main character which express is how the author feels about the character.
Answer:
instead of saying Sparrow and Liam exchanged stairs across the library you could instead try saying Liam and Sparrows eyes met from across the room or across the library, or not. I think your story's fine, if you want to make it a few more sentence longer then maybe you can put like a little backstory to why Liam and Sparrow are fighting or not it's your story I'm just you know saying maybe if you want a few more sentences it's something to put.
