A conservation group recorded the area of peat bog habitat and the number of plant species found there.
| Year | 2000 | 2005 | 2010 | 2015 | 2020 |
|---|---|---|---|---|---|
| Area of peat bog habitat in ha | 48 | 36 | 24 | 30 | 42 |
| Number of plant species | 19 | 16 | 11 | 14 | 18 |
Which statement is supported by these results?
At both surveys after 2010, the peat bog area and the number of plant species were higher than at the previous survey.
The greatest number of plant species was recorded in 2020, when the peat bog covered 42 ha.
The peat bog covered a smaller area in 2015 than in 2005, but more plant species were recorded in 2015.
Between 2000 and 2010, the peat bog area and the number of plant species both fell to half their original values.
109 exam-style questions on OCR GCSE Biology 6.1 Monitoring and maintaining the environment, covering 6.1.1 Field investigation of distribution and abundance, 6.1.2 Human interactions and biodiversity, 6.1.3 Maintaining biodiversity, and 6.1.4 Environmental change and distribution of organisms. Each one has a worked solution and a mark scheme showing where the marks go.