Agricultural Engineering 2025 – 400 Free Practice Questions to Pass the Exam

Methane (CH4) is a significant gas produced from agricultural waste, primarily during the anaerobic decomposition process of organic materials. When agricultural waste, such as crop residues, manure, and food scraps, decomposes without oxygen, microorganisms break down the organic matter, resulting in the production of biogas, which is composed mainly of methane and carbon dioxide.

This process occurs in environments like landfills, anaerobic digesters, and composting facilities that lack oxygen. The generation of methane from agricultural waste is important not only because it serves as a renewable energy source, contributing to energy production and sustainability, but also because it helps manage agricultural byproducts effectively, reducing potential environmental impacts.

In this context, biogas is a broader term that encompasses the gas produced from organic matter, which includes methane as its primary component. Therefore, while biogas itself could be a suitable answer, the focus specifically on methane as the primary gas produced makes it the more precise choice in this setting.