This is a link to describe what photosynthesis is. en.wikipedia.org Photosynthesis - Wikipedia
Respiration and decay equation. www.open.edu Energy resources are essential for any society, be it one dependent on subsistence farming or an industrialised country. There are many different sources of energy, some well-known such as coal or...
You tube animation of fossil fuels. www.youtube.com YouTube
Volcanic Carbon dioxide link. carbon-budget.geologist-1011.net
You tube clip about carbon dioxide increasing in our atmosphere. www.youtube.com A short film explaining the carbon cycle and how carbon dioxide is increasing in our atmosphere.
Definition of aerobic respiration. www.biology-online.org Aerobic respiration
Explanation of burning wood in the carbon cycle. logging.about.com The best tree species for burning and heating are determined by ease of preparation and heating values.
Picture and description of combustion. www.eoearth.org

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