Biogas - GCSE Biology Definition

Biogas is a type of renewable energy produced by the anaerobic digestion of organic matter, such as animal waste, food scraps, and plant material, by microorganisms. In this process, bacteria break down the material without oxygen, releasing a mixture of gases, mainly methane and carbon dioxide. The methane can be captured and used as a fuel for heating, electricity generation, or powering vehicles. In GCSE Biology, understanding biogas is important because it shows how microorganisms help recycle nutrients and how biological processes can contribute to sustainable energy production.