JAMB - Chemistry (2006 - No. 13)
The gas obtained as a product of anaerobic action on organic matter buried in the earth is?
ethene
methane
carbon (IV) oxide
nitrogen (IV) oxide
Explication
The organic material (or organics) within the low-oxygen environment of landfills also undergoes anaerobic digestion, producing methane.
When organic matter decomposes without oxygen (anaerobic conditions), bacteria produce a gas mixture called biogas, which is mainly composed of methane and carbon dioxide.