The anaerobic decomposition of organic matter (including wastes) produces a mixture of carbon dioxide and methane, e.g. C6H12O6 => 3 CO2 + 3 CH4. (a) Since CO2 has no fuel value, suggest an easy method for separating the two gaseous products of this reaction. (b) Imagine a landfill that contains both waste paper (which you can assume to be cellulose) and waste cooking oils or fats (which you can assume to be stearin). Both undergo anaerobic decomposition. Which of these two wastes would produce gas with the higher CH4/CO2 ratio, and by what factor?