Anaerobic digestion produces biogas which usually contains 60-70% of methane (CH4). 30-40% of carbon-di-oxide (CO2). and 10-2. 000 ppm hydrogen sulfide (H2S). https://www.bekindtopets.com/flash-deal-Disney-Toy-Story-Buzz-Lightyear-Silhouette-iPad-Mini-5-2019-Clear-Case-p41761-best-super/