The table shows annual data for a country before and during a period of conflict.
| Before the conflict | During the conflict | |
|---|---|---|
| Population | 4.0 million | 4.8 million |
| Mass of safe food supplied | 1.20 million tonnes | 0.96 million tonnes |
Using the data, explain why it became more difficult for the country to maintain food security during the conflict.
Calculate the additional mass of food that would need to be supplied each year during the conflict for the mass available per person to equal the value before the conflict.
Give your answer in tonnes.
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.