( ( Some ( of ( the water ) ) ) ( ( ( ( ( ( returns ( to ( the atmosphere ) ) ) ( through ( ( transpiration , ) ( ( a process ) ( ( by which ) ( water ( is ( ( ( taken up ) ( by ( ( trees and ) plants ) ) ) ( through ( their roots ) ) ) ) ) ) ) ) ) ) , ) and ) ( is ( ( ( released back ) ( into ( the air ) ) ) ( through ( their leaves ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Some)) (PP (IN of) (NP (DT the) (NN water)))) (VP (VP (VBZ returns) (PP (TO to) (NP (DT the) (NN atmosphere))) (PP (IN through) (NP (NP (NN transpiration)) (, ,) (NP (NP (DT a) (NN process)) (SBAR (WHPP (IN by) (WHNP (WDT which))) (S (NP (NN water)) (VP (VBZ is) (VP (VBN taken) (PRT (RP up)) (PP (IN by) (NP (NNS trees) (CC and) (NNS plants))) (PP (IN through) (NP (PRP$ their) (NNS roots))))))))))) (, ,) (CC and) (VP (VBZ is) (VP (VBN released) (PRT (RP back)) (PP (IN into) (NP (DT the) (NN air))) (PP (IN through) (NP (PRP$ their) (NNS leaves)))))) (. .)))
Some of the water returns to the atmosphere through transpiration , a process by which water is taken up by trees and plants through their roots, and is released back into the air through their leaves.
(ROOT (S (NP (NNP Transpiration)) (VP (VBZ is) (SBAR (WHADVP (WRB when)) (S (NP (NN plant) (NNS roots)) (VP (VP (VB absorb) (NP (JJ liquid) (NN water))) (CC and) (VP (VB release) (NP (NN water) (NN vapor)) (PP (IN into) (NP (DT the) (NN atmosphere)))))))) (. .)))