Two life cycle assessments of the same product reach different conclusions. What is the most likely reason?
Different value judgements were made about the pollutants
One assessment measured the mass of the product wrongly
Life cycle assessments cannot include energy use or water use
The product was made in a different factory on each occasion
40 exam-style questions on AQA GCSE Chemistry 10.2 Life cycle assessment and recycling, covering 10.2.1 Life cycle assessment and 10.2.2 Ways of reducing the use of resources. Each one has a worked solution and a mark scheme showing where the marks go.