How can you identify a natural and synthetic fiber?

natural fibres are like 1st hand things (i know doesn't make sense, i know)... natural fibres like wool come straight of a sheep coat or linen comes from a specific plant...

manufactured fibres are like materials made out of a natural fibre like acrylic which is made from wool...they are like 2nd hand things...

hope this makes sense

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Natural Fibres come from plants, animals and minerals.

Manufactured Fibres come from scientific processes and can't be found in nature. (Man-Made)