In agriculture, large sheets of plastic film are laid over fields to suppress weeds and retain soil moisture. Traditionally, these mulching films are made from poly(ethene), but increasingly, farmers are switching to biodegradable polyesters.
Explain one environmental advantage of using biodegradable polyesters rather than poly(ethene) for these agricultural films.
Practise Edexcel GCSE Chemistry Polymers with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.