What causes the level of atmospheric CO₂ to rise and fall throughout the year?

Question

Quizplus · Accepted Answer

The level of atmospheric COS (carbonyl sulfide) rises and falls throughout the year due to the seasonal growth and dormancy of plants. During the growing season, plants absorb more COS from the atmosphere for photosynthesis, resulting in a decrease in atmospheric COS levels, while during the dormant season, less COS is absorbed, leading to an increase in atmospheric COS levels.

What Causes the Level of Atmospheric CO2 to Rise and Fall

What Causes the Level of Atmospheric CO₂ to Rise and Fall