The correct answer is D. Methane and carbon dioxide.
Biogas is a mixture of gases produced by the breakdown of organic matter in the absence of oxygen. The main components of biogas are methane (CH4) and carbon dioxide (CO2), with smaller amounts of other gases such as hydrogen (H2), nitrogen (N2), and oxygen (O2).
Methane is a colorless, odorless, and flammable gas that is lighter than air. It is the main component of natural gas and is also produced by the decomposition of organic matter in landfills and sewage treatment plants. Methane is a greenhouse gas that contributes to climate change.
Carbon dioxide is a colorless, odorless, and non-flammable gas that is heavier than air. It is the main component of dry air and is also produced by the respiration of animals and the burning of fossil
576 512"> Subscribe on YouTube