Question

as trash in the landfill decomposes; a greenhouse gas is produced and leaks from the landfill. we install gas detection units at various locations around the landfill to detect this gas as it is released. which gas is released?
argon
methane

Explanation:

When trash in landfills decomposes anaerobically, methane is a common greenhouse - gas produced. Argon is an inert gas and not produced by landfill decomposition.

Answer:

Methane