During the past 275 years human activities have been responsible for 70% of methane emissions.Which activity is not a source of methane?

Question

Quizplus · Accepted Answer

Modern fertilizers are not a direct source of methane emissions. Methane is primarily produced through anaerobic decomposition of organic matter, enteric fermentation in animals, and the extraction and distribution of fossil fuels. Modern fertilizers contribute to nitrous oxide emissions, another potent greenhouse gas, but not directly to methane emissions.

During the Past 275 Years Human Activities Have Been Responsible