A country produces all of its own food and does not export any food. All the food produced is safe to eat.
The table shows data for 2025 and forecasts for 2040.
| Year | Population in millions | Mass of food produced each year in million tonnes |
|---|---|---|
| 2025 | 8.0 | 4.8 |
| 2040 | 10.0 | 5.0 |
Calculate the percentage decrease in the mass of food produced per person from 2025 to 2040.
Explain why the forecasts suggest that food security will be harder to maintain in this country.
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.