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The residue forms a kind of grey ball along the burning portion.
Motion sickness, food poisoning and gastroenteritis are the causes of vomiting.
Pure silk and polyester.
Wool, silk and cotton.
What residue is left behind afterburning wool?
The residue forms a kind of grey ball along the burning portion.
The residue forms a kind of grey ball along the burning portion.
See lessWhat are the causes of vomiting?
Motion sickness, food poisoning and gastroenteritis are the causes of vomiting.
Motion sickness, food poisoning and gastroenteritis are the causes of vomiting.
See lessWhich fibre shrinks away from flame?
Pure silk and polyester.
Pure silk and polyester.
See lessName three natural fibres.
Wool, silk and cotton.
Wool, silk and cotton.
See less