How is Carbon Dioxide produced?

Question: How is Carbon Dioxide produced?
- Keywords:
  carbon dioxide,
  chemistry,
  gas
Asked by mikeyswann101 to James, Marcus, Martin, Rob, Suzanne on 16 Mar 2012.
- James Boone answered on 15 Mar 2012:
  
  Carbon dioxide is produced by any living creature such as ourselves when or plants during the process of respiration. Carbon dioxide is also produced by humans when we burn fossil fuels, ie running our cars or burning gas, coal or oil for energy.
- Suzanne McEndoo answered on 15 Mar 2012:
  
  Short stupid answer, in any process that combines two oxygen with a carbon. Longer, less stupid answer, breathing by animals, including humans, creates it. As does a lot of proceses that involve burning carbon based things. Gas, oil, coal and peat are all created by plant material, so they all are high in carbon and produce carbon dioxide when they burn.
- Martin Zaltz Austwick answered on 16 Mar 2012:
  
  You produce carbon dioxide every time you breath out – breathing in oxygen and being alive causes you to produce CO2. And, as Suzanne says, burning things creates Carbon Dioxide too.
- Marcus Gallagher-Jones answered on 16 Mar 2012:
  
  You produce CO2 in your body through a process of controlled burning known as respiration. It’s quite a long winded process, it involves around 12 separate reactions, but it means that almost no energy is lost as heat when sugar is broken down. The by products from this breakdown of carbon containing sugar are CO2 and water. In normal combustion most of the resulting energy will be given off as heat.