Microbial activities in rice paddies increase the release of methane. What will happen if the rice paddy sediments are aerated?
A) More methane will be released.
B) More carbon dioxide will be released.
C) Methane release will be unaffected.
D) More nitrous oxide will be released.
E) More ammonia will be released.

Question

Quizplus · Accepted Answer

Aeration of rice paddy sediments promotes the growth of aerobic microorganisms, which leads to the oxidation of organic matter and the release of carbon dioxide instead of methane. This process is called methane suppression. Therefore, more carbon dioxide will be released if rice paddy sediments are aerated.

Microbial Activities in Rice Paddies Increase the Release of Methane