Which is a cause of pollution of the land?
Acidic gases released into the air from burning fossil fuels
Sewage released from treatment works into rivers and streams
Toxic chemicals leaking out of the waste buried in landfill sites
Fertiliser washed off farmers' fields into nearby lakes and ponds
49 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.