He died of 'natural causes'. [=he died because he was ill or old and not by being killed in an accident, battle, etc.]
She was adopted immediately after she was born and never knew her 'natural' [=(more commonly) 'birth'] parents.
a country rich in 'natural resources' [=a country that has many valuable plants, animals, minerals, etc.]
(..) It's not like Dogme . What's Dogme ? Cinematic movement. Lars von Trier. Rules for a director... no background music, only natural light, for authenticity. Same as these, so they can't cheat, cut another guy's arse pumping away. 'I can't think of anything remotely like this. (..)2011 TvShow: Black Mirror Title: The National Anthem Season: 1 Episode 1