A group of greenhouse growers introduced sensor-controlled irrigation. The table shows their annual output and staffing before and after the change.
| Period | Annual output (tonnes) | Number of workers |
|---|---|---|
| Before the change | 720,000 | 12,000 |
| After the change | 810,000 | 12,000 |
Explain how the changes shown in the table could contribute to economic growth.
78 exam-style questions on OCR GCSE Economics 3.1 Economic growth, covering 3.1.1 What is economic growth, 3.1.2 Calculate economic growth using GDP, 3.1.3 Explain how growth is measured, 3.1.4 Analyse GDP data, 3.1.5 Determinants of economic growth, and 3.1.6 Costs and benefits of economic growth. Each one has a worked solution and a mark scheme showing where the marks go.