A life cycle assessment compares granite road kerbs with concrete road kerbs.
Which decision in the assessment requires a value judgement?
Deciding which kerb released more carbon dioxide during transport
Deciding which kerb used more water during manufacture
Deciding which kerb needed a greater mass of raw materials
Deciding how serious the damage to the landscape was when the raw materials were obtained
99 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.