Crowveil

I have read somewhere that copper is completely recyclable it it true if so how ?

I want to find borax but I dont know its in game name and I coulnt find it in the survival handbook to is it like copper where it has multiple names or a diffrent name like instead of saying borax it says something diffrent or will it just say a ... amount of borax when you prospect

do baby pigs eat out of large feeding things or do I gottta place a small one just for baby pigs and if I dont feed them in do they die cuz my sow gave birth on the day before my first winter

I'm new to the game but I though only those aged torch holders keep torches from not burning out can wooden torch holders do that ?? if so omg I could have saved so much time by not crafting so many lanterns