( ( ( ( ( ( ( ( The evaporation ) ( of ( water ( from ( seas ( , ( lakes ( , ( rivers ( , ( ponds ( , ( snow ( and ( ice fields ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) , ) vegetation ) , ) and ) ( the earth ) ) ( itself ( ( forms ( ( an ( invisible gas ) ) ( in ( ( the atmosphere ) ( of ( the earth ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NP (DT The) (NN evaporation)) (PP (IN of) (NP (NP (NN water)) (PP (IN from) (NP (NNS seas) (, ,) (NNS lakes) (, ,) (NNS rivers) (, ,) (NNS ponds) (, ,) (NN snow) (CC and) (NN ice) (NNS fields)))))) (, ,) (NP (NNP vegetation)) (, ,) (CC and) (NP (DT the) (NN earth))) (NP (PRP itself)) (VP (VBZ forms) (NP (NP (DT an) (JJ invisible) (NN gas)) (PP (IN in) (NP (NP (DT the) (NN atmosphere)) (PP (IN of) (NP (DT the) (NN earth))))))) (. .)))
The evaporation of water from seas, lakes, rivers, ponds, snow and ice fields, vegetation, and the earth itself forms an invisible gas in the atmosphere of the earth.
(ROOT (S (NP (JJ Volcanic) (NNS gases)) (VP (VBP helpe) (S (VP (TO to) (VP (VB form) (NP (DT the) (NN atmosphere)) (PP (IN on) (NP (NN earth))))))) (. .)))