What is the difference in the meaning of the following sentences:
"I found the map, but one of its corners had been torn away."
"I found the map, but one of its corners had been torn off."
"I found the map, but one of its corners had been torn down."
"I found the map, but one of its corners had been torn apart."
Does "torn away" means that the corner of the page was torn apart/down and then it was lost?
I just searched few articles where different prepositions related to tearing of page were mentioned, which I covered in the above questions. I also searched these phrasal verbs in the standard dictionaries such as Oxford and Cambridge, but I didn't find any specific example.