and make money off?
Can I also have any source or a proof for your answer, cause im realy realy paranoid
Maybe try searching the forums? Use google restricted to the unity site if you can’t get good results from Unity search. This question has been answered many many times.
Depends on the asset. You need to figure it out for each asset you wish to use.
You can even republish Angry Bots and sell it, IF Apple store and the user approve it.