A farm grows a crop for biofuel. Each year, 24 000 tonnes of the crop are produced, 20 000 tonnes are used as fuel, and the crop is replanted.
Which statement best describes this crop as an energy resource?
The crop is renewable because it comes from a natural source
The crop is renewable because its annual production exceeds the amount used
The crop is finite because its supply depends on a harvest each year
The crop is finite because it is used as a fuel
87 exam-style questions on AQA GCSE Chemistry 10.1 Using the Earth's resources and obtaining potable water, covering 10.1.1 Using the Earth's resources and sustainable development, 10.1.2 Potable water, 10.1.3 Waste water treatment, and 10.1.4 Alternative methods of extracting metals. Each one has a worked solution and a mark scheme showing where the marks go.