The kind of ion is an H+-ion, also called a proton.
ion with +2 electrical charge
A soil scientist.
A positively charged ion.
It forms a cation (a positive ion)
A file is much much more general than a torrent file. A torrent file is a type of file. Torrent files are downloaded files that are in the middle of being processed and downloaded. They're kind of like crown downloads.
She was a biologist and an environmental scientist.
hydroxide is a polyatomic ion (OH[superscript -])
You would need the original torrent file to reseed a torrent. Old torrent files may still be kept by your torrent client. There is no way to find the torrent file from the directory contents though. If you know which torrents you have downloaded, you can download the torrent files again and reseed that way. Or you can create new torrent files and submit these to torrent site. (note: most torrent sites only accept magnet links these days)
No ben Steve Jobs is not a scientist