All household waste from a town was stored at a site beside a freshwater wetland.
Scientists recorded data for the town and the wetland.
| Year | Population of town | Mean household waste produced per person in one year in kg | Number of species recorded in the wetland |
|---|---|---|---|
| 2014 | 1500 | 280 | 44 |
| 2024 | 2400 | 420 | 29 |
Calculate how many more kilograms of household waste were produced by the town in 2024 than in 2014.
Use the data and your answer to part (a) to suggest how the change in the amount of household waste may have reduced the biodiversity of the wetland.
The town begins recycling half of its household waste instead of storing it at the site. Predict how this may affect the biodiversity of the wetland. Explain your answer.
84 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.