Which quantity is the most difficult to give a numerical value to in a life cycle assessment?
The volume of water used in the manufacturing stage
The effect of the pollutants released on the environment
The mass of the waste sent to landfill after disposal
The energy transferred to the product when it is used
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.