Plastics are____________________?
Correct answer: C. Non-biodegradable
- A. Used in very high temperature applications
- B. Not suitable for drainage pipe manufacture
- C. Non-biodegradable
- D. All A., B. & C.
Explanation
Most conventional plastics resist biological decomposition, making them effectively non-biodegradable in ordinary environmental conditions. Plastics are used for drainage pipes, and some specialised plastics tolerate high temperatures, so the other statements are not generally valid.
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