Some archaea return significant quantities of organic carbon to the atmosphere as
A) carbon monoxide.
B) carbon dioxide.
C) glucose.
D) methane.
E) nitrate.

Question

Quizplus · Accepted Answer

Some archaea, specifically methanogens, produce methane as a by-product of their metabolism, which is eventually released into the atmosphere. Methane is a potent greenhouse gas and contributes to climate change.

Some Archaea Return Significant Quantities of Organic Carbon to the Atmosphere