5.13 Greenhouse Effect 0.0 / 5 ? BiologyClimate change and evolutionA2/A-levelEdexcel Created by: NatashaLuisCreated on: 14-10-19 11:28 define global warming average increase in the temperature of the earth's surface 1 of 7 define a greenhouse gas any gas that traps heat in the earth's atmosphere rather than releasing that energy to space 2 of 7 what are the three main greenhouse gases? carbon dioxide, methane and water vapour 3 of 7 list anthropogenic(human) causes of global warming burning fossil fuels, deforestation, ruminant emissions and permafrost thawing 4 of 7 how does ruminant emissions affect global warming? greater demand for meat increases cattle which give off methane as a waste gas 5 of 7 how does deforestation affect global warming? trees are a carbon sink that store CO2 which is released when they are cut down or burnt 6 of 7 how does the thawing of permafrost affect global warming? frozen carbon deposits thaw and release methane 7 of 7
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