A landlocked country produces a staple cereal and imports other food by rail. In 2035, conflict may close the railway for part of the year.
Scientists made the following predictions. All food data are for one year.
| Situation | Population in millions | Crop grown before losses in million tonnes | Crop destroyed by pests and pathogens in % | Food imported in million tonnes |
|---|---|---|---|---|
| 2025 | 10 | 4.0 | 5 | 1.0 |
| 2035 without conflict | 12 | 4.8 | 20 | 1.2 |
| 2035 with conflict | 12 | 4.8 | 20 | 0.3 |
Explain how food security is predicted to change from 2025 to 2035 and how conflict would affect this change.
Use information from the table and calculations in your answer.
87 exam-style questions on AQA GCSE Biology 7.5 Food production, covering 7.5.1 Factors affecting food security, 7.5.2 Farming techniques, 7.5.3 Sustainable fisheries, and 7.5.4 Role of biotechnology. Each one has a worked solution and a mark scheme showing where the marks go.