The carbon and oxygen cycles Which of the following is not a source of release of CO₂to the atmosphere? A)plant and animal respiration B)burning of grasslands and forests C)fossil fuel combustion D)photosynthesis E)volcanic activity

Question

Quizplus · Accepted Answer

Photosynthesis is a process in which carbon dioxide is taken in and oxygen is released, therefore it is not a source of release of COS (carbonyl sulfide) to the atmosphere. The other options listed (plant and animal respiration, burning of grasslands and forests, fossil fuel combustion, and volcanic activity) are all sources of COS release.

The Carbon and Oxygen Cycles