Here comes a very stupid question. I always wondered what type of grammatical phenomenon allows adverb phrases to be placed right next to each other repeatedly. So something like this.
I ate a bag of popcorn [at 8'o clock] [in a movie theater] [to get rid of my hunger].
All the bracketed phrases are adverb phrases, and it seems to me that all of them modify verb "ate". Now here is the stupid part. Is the reason they are able to come right next to each other without any thing that actually connects them (for example, conjunction) because those adverb phrases modify the one that comes right next to them? I know for sure adverb phrases can modify other adverb phrases, just like how adverbs are able to modify other adverbs.
So "at 8'o clock" modifies "in a movie theater" and "in a movie theater" modifies "to get rid of my hunger". But all of them also modify verb "ate" at the same time. Is my explanation grammatical, or is it plainly wrong?