How many among the following are biodegradable polymers? (i) Polyhydro – InterviewSolution

1.	How many among the following are biodegradable polymers? (i) Polyhydroxybutyrate (PHB) (ii) PHBV (iii) SBR (iv) Polyglycolic acid (v) Bakelite (vi) Thiokol (vii) Nylon-2-Nylon-6 (vii) PMMA (ix) Nylon-6, 6.
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