( Students ( ( learn ( about ( ( the ( ( causes and ) effects ) ) ( of ( ( ( ( ( ( ( ( ( smog , ) ( global warming ) ) , ) ( ozone depletion ) ) , ) ( acid ( rain ( , ( groundwater ( and ( soil pollution ) ) ) ) ) ) ) , ) and ) ( surface ( water ( and ( ocean pollution ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Students)) (VP (VBP learn) (PP (IN about) (NP (NP (DT the) (NNS causes) (CC and) (NNS effects)) (PP (IN of) (NP (NP (NN smog)) (, ,) (NP (JJ global) (NN warming)) (, ,) (NP (NN ozone) (NN depletion)) (, ,) (NP (JJ acid) (NN rain) (, ,) (NN groundwater) (CC and) (NN soil) (NN pollution)) (, ,) (CC and) (NP (NN surface) (NN water) (CC and) (NN ocean) (NN pollution))))))) (. .)))
Students learn about the causes and effects of smog, global warming, ozone depletion, acid rain, groundwater and soil pollution, and surface water and ocean pollution.
(ROOT (S (NP (NNP Air) (NN pollution)) (VP (VBZ causes) (NP (NP (JJ acid) (NN rain)) (, ,) (NP (NN ozone) (NN depletion)) (, ,) (CC and) (NP (JJ global) (NN warming)))) (. .)))