A local food cooperative currently supplies 900 tonnes of a crop each year. It expects demand to rise to 1080 tonnes per year. The cooperative is considering using 2.0 hectares of hydroponic growing area to increase its supply.
The table shows the mass of the crop harvested in one year from two trial plots. Both plots grew the same crop.
| Growing method | Area of plot in hectares | Mass harvested in tonnes |
|---|---|---|
| In soil | 1.0 | 8.0 |
| Hydroponics | 0.5 | 35 |
Evaluate the cooperative’s proposal to use 2.0 hectares of hydroponic growing area to meet the expected increase in demand.
127 exam-style questions on OCR GCSE Biology 6.2 Feeding the human race, covering 6.2.1 Biological factors affecting food security, 6.2.2 Agricultural solutions to growing demand, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, 6.2.5 Steps in genetic engineering, 6.2.6 Benefits and risks of gene technology in agriculture, and 6.2.7 Biotechnological solutions to growing demand. Each one has a worked solution and a mark scheme showing where the marks go.