Which of the following gases is generated sanitary landfill breaks down A.methane B.nitrogen c.hydrogen D.all the above
Answer (1)
Correct answer: A. MethaneExplanationIn a sanitary landfill, waste breaks down anaerobically (without oxygen).This process produces methane gas (CH₄) as a byproduct.Methane is a greenhouse gas and is often captured to be used as fuel or burned off for safety.Nitrogen and hydrogen are not typically produced in large amounts during landfill decomposition.
