CAM 10 TEST 1 IELTS WRITING TASK 1 The first chart below shows how energy is used in an average Australian household The second chart shows the greenhouse gas emissions which result from this energy use The first pie chart shows the energy is consumed in an average household in Australia The second pie chart shows the emissions of greenhouse gases which are caused by this energy consumption Overall, heating, water heating, and the operation of other appliances account for the highest proportion.