The table shows data for a paper cup and for a reusable cup. The reusable cup replaces one paper cup each time it is used. What is the smallest number of uses for which the reusable cup releases less carbon dioxide in total?
Table: The mass of carbon dioxide released when each type of cup is made and used
| Stage | Mass of carbon dioxide released in g |
|---|---|
| Making one paper cup | 35 |
| Making one reusable cup | 600 |
| Each use of the reusable cup, including washing | 10 |
17
25
40
60
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.