absorbing something is a kind of method for taking something in & taking in carbon dioxide is a stage in the photosynthesis process ->  absorbing carbon dioxide is a stage in the photosynthesis process  absorbing carbon dioxide is a stage in the photosynthesis process & carbon dioxide can be found in the air ->  absorbing carbon dioxide from the air is a stage in the photosynthesis process  absorbing carbon dioxide from the air is a stage in the photosynthesis process & plants perform photosynthesis ->  a plant absorbs carbon dioxide from the air to perform photosynthesis  a plant absorbs carbon dioxide from the air to perform photosynthesis & when carbon dioxide in the atmosphere is absorbed by plants , the amount of carbon dioxide in the atmosphere is reduced in the atmosphere -> plant photosynthesis reduces the amount of carbon dioxide in the air