The table shows smoking data for a town.
Table
| Year | Number of adults | Percentage who smoke |
|---|---|---|
| 2015 | 20000 | 25 |
| 2025 | 24000 | 15 |
How did the number of adults who smoke change between these years?
It increased by 1400 adults.
It decreased by 2000 adults.
It decreased by 1400 adults.
It increased by 2000 adults.
44 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.