It is a man-made material.
PVC (polyvinyl chloride) is a man-made synthetic plastic polymer made from vinyl chloride. It is not a natural substance but is manufactured through a chemical process.
Coal is a natural mineral. You might be confusing this with charcoal which is man-made.
It is natural but there are man-made imitations.
It can be made from natural or man made fibres.
It is a man-made material.
Yes, stone is a natural substance, not man-made.
It's a natural substance
It's a natural substance
No, aspartame is a man-made substance for which the maker has a patent.
PVC (polyvinyl chloride) is a man-made synthetic plastic polymer made from vinyl chloride. It is not a natural substance but is manufactured through a chemical process.
Diphtheria is a disease caused by a bacteria. It is entirely natural, unfortunately.
Because it's natural, it's grown not man made
When a harmful substance poisons any thin natural Its usually man-made
Diamonds are a naturally occurring substance found deep in the earth's crust.
Diamonds are a naturally occurring substance found deep in the earth's crust.
Coal is a natural mineral. You might be confusing this with charcoal which is man-made.