Well, MOST pathogenic bacteria is harmless, but SOME could cause death, like tuberculosis, but just in case you would want to mark the answer as, "True".
I hope I helped! =D
Answer:
I think it's B not sure though check in Google or read the book
They will run out. Because nonrenewable means it can't be renewed until like millions of year or so. Hope this helps and You're Welcome! :3