Some newspaper articles claim that global warming is not caused by human activity. Almost all scientists are confident that it is. Which gives the strongest reason for the scientists' confidence?
The conclusion has been reported on television and in many newspapers
The conclusion is supported by most of the governments around the world
The conclusion is based on peer-reviewed evidence from many scientists
The conclusion is based on one computer model of the Earth's atmosphere
40 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.