I love how you get downvoted. The fuck is wrong with people here? So much better than Reddit blablabla and then this bullshit happens so often. Why do people always have to suck so hard?
The real question is why does anyone care if a comment on a comment gets down voted. This isn't reddit where they track your karma. So who cares.
Probably 30% of comments here are "why are people downvoting you" and comments like "i love all the blahblah haters commenting here, people are so fucked up" which by the time anyone reads it, the haters have been long since drowned out by the rational people. Sad waste.
Because the person you replied to is acting purposely obtuse? It's clear that the OP was asking what is done with any non-organic materials that may be inside a person when they die. Are they removed? Are they left to be buried in the ground? What about cremation, do they burn the body with any of that inside? That's pretty obvious to anyone with above a 5th grade reading comprehension, so a snarky reply is unwarranted and obnoxious.
I was being a bit obtuse, but the question was worded poorly. If OP wanted to know what happens after cremation, or an autopsy, or something else like that, they should have clarified. You yourself literally came up three additional questions, all of which might apply to the original question. I just decided to answer it literally.