The only natural thermoplastic resin, which is a product of animal life is (A) Rosin (B) Shellac (C) Amber (D) Copal

The only natural thermoplastic resin, which is a product of animal life
is
(A) Rosin
(B) Shellac
(C) Amber
(D) Copal
by

1 Answer

Answer :

(B) Shellac
by

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