Polyethene and natural solids from underground
it is a polymer of ethene
It is natural but there are man-made imitations.
high density polyethene
It can be made from natural or man made fibres.
natural feature
Is limestone natural or man made
Man-made and Natural Resources
Synthetic materials are man-made materials. Examples are: 1.polystyrene, 2.Polyethene, 3.polyester, 4.spandex,
it is all natural
otherwise they couldnt be plastic
Rubber is man-made but has natural agents.