Biogas
(noun)
A mixture of gases, mostly methane and carbon dioxide, produced by the breakdown of organic matter in the absence of oxygen.
Origin:
From bio- + gas.
Examples:
- Biogas is produced by the anaerobic digestion of organic material such as agricultural waste and sewage.
- Biogas is a clean, renewable energy source.
- Biogas can be used to generate electricity and heat.
- Biogas production is an environmentally friendly way to dispose of organic waste.
- Biogas can be used in vehicles as a fuel source, reducing dependence on fossil fuels.