The table shows the length of hedgerow on a farm and the number of bird species seen on the farm.
Table
| Year | 1980 | 1990 | 2000 | 2010 | 2020 |
|---|---|---|---|---|---|
| Length of hedgerow in km | 12.0 | 9.5 | 6.0 | 6.5 | 8.5 |
| Number of bird species | 34 | 29 | 21 | 22 | 27 |
Which statement is supported by the data?
Bird species fell as hedgerows were removed and rose as they were replanted.
The number of bird species fell in every ten-year period from 1980 to 2020.
There were more bird species in 2020 than in 1980 as hedgerows were replanted.
Hedgerow length and the number of bird species both fell from 2000 to 2010.
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.