The Table shows the area of land needed to produce 1 kg of protein from three different foods.
Table
| Food | Area of land needed to produce 1 kg of protein in m2\text{m}^2m2 |
|---|---|
| beef | 160 |
| chicken | 48 |
| peas | 16 |
Calculate how many times more land is needed to produce 1 kg of protein from beef than from peas.
Explain why more land is needed to produce 1 kg of protein from beef than from peas.
A student says:
'If everyone stopped eating beef and ate peas instead, there would be enough food for everyone in the world.'
Evaluate the student's statement.
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.