Which of the following is not degraded by any biological process? *
1 point
(A) CO2
(B) CFC
(C) O2
(D) NH3
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Answered by
3
Answer:
19.2.6 Biological degradation
Biological degradation is not a common form of degradation as most polymers are resistant to microbiological attack by fungi or bacteria. It is the chemical additives and pigments that are usually susceptible to microbial attack (Campo, 2007), which tends to occur on exposed surfaces owing to oxidation of the additives. Polyurethanes in particular are sensitive to microbial attack, although polyether polyurethanes are more resistant to biological
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Answered by
1
Answer:
B) CFC
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