3
Q:
A) Nitrogen | B) Hydrogen |
C) Methane | D) Oxygen |
Answer: C) Methane
Explanation:
Explanation:
Decomposing waste in the landfills, by the action of microorganisms, produce methane and carbon dioxide. Landfill gas consists of 40-60% of methane and rest is carbon dioxide. Trace amount of volatile organic compounds (<1) are also present which mainly comprise of hydrocarbons.