understand the biological consequences of pollution of air by sulfur dioxide and carbon monoxide

understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases

understand how human activities contribute to greenhouse gases

understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences

understand the biological consequences of pollution of water by sewage

understand the biological consequences of eutrophication caused by leached minerals from fertiliser

understand the effects of deforestation, including leaching, soil erosion,disturbance of evapotranspiration and the carbon cycle, and the balance of atmospheric gases