Although trees take in carbon dioxide and release oxygen during photosynthesis, they also release some carbon dioxide as a by-product of respiration, as most organisms do.
(trees; take; L:in carbon dioxide and release oxygen; T:during photosynthesis) (they; also release; some carbon dioxide) (most organisms; do; )
trees they most organisms
take also release do
L:in carbon dioxide and release oxygen T:during photosynthesis
some carbon dioxide