( ( ( The reaction ) ( of ( ( carbon dioxide ) ( with ( water ( in ( the soil ) ) ) ) ) ) ) ( ( produces ( ( ( carbonic acid ) ( -LRB- ( ( ( ( H 2 ) CO ) 3 ) -RRB- ) ) ) ( which ( determines ( ( the rate ) ( of ( rock ( weathering ( in ( most ecosystems ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN reaction)) (PP (IN of) (NP (NP (NN carbon) (NN dioxide)) (PP (IN with) (NP (NP (NN water)) (PP (IN in) (NP (DT the) (NN soil)))))))) (VP (VBZ produces) (NP (NP (JJ carbonic) (NN acid)) (PRN (-LRB- -LRB-) (NP (QP (NN H) (CD 2) (CD CO) (CD 3))) (-RRB- -RRB-)) (SBAR (WHNP (WDT which)) (S (VP (VBZ determines) (NP (NP (DT the) (NN rate)) (PP (IN of) (NP (NP (NN rock)) (VP (VBG weathering) (PP (IN in) (NP (JJS most) (NNS ecosystems)))))))))))) (. .)))
The reaction of carbon dioxide with water in the soil produces carbonic acid (H 2 CO 3 ) which determines the rate of rock weathering in most ecosystems.
(ROOT (S (NP (NNP Carbon) (NN dioxide)) (ADVP (RB chemically)) (VP (VBP weather) (NP (NNS rocks)) (PP (IN by) (S (VP (VBG creating) (NP (NNS acids)))))) (. .)))