HORTICULTURE

Detailed explanation-1: -Biogas is generated during anaerobic digestion when microorganisms break down (eat) organic materials in the absence of air (or oxygen). Biogas is mostly methane (CH4) and carbon dioxide (CO2), with very small amounts of water vapor and other gases.

Detailed explanation-2: -Anaerobic digestion is a process through which bacteria break down organic matter-such as animal manure, wastewater biosolids, and food wastes-in the absence of oxygen.

Detailed explanation-3: -The anaerobic digestion process produces gas composed of methane (CH4) and carbon dioxide (CO2), known as biogas.

Detailed explanation-4: -Methanogens are an important group of microorganisms for several reasons, the most important being their ability to process organic matter to methane. Methanogenic bacteria are used in anaerobic decomposition of wastewater, as a part of the wastes treatment system.