( ( ( ( ( ( Sulfates , ) nitrates ) , ) and ) ( elemental ( and ( organic carbon ) ) ) ) ( ( are ( most ( effective ( at ( ( ( scattering or ) absorbing ) light ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Sulfates)) (, ,) (NP (NNS nitrates)) (, ,) (CC and) (NP (JJ elemental) (CC and) (JJ organic) (NN carbon))) (VP (VBP are) (ADJP (RBS most) (JJ effective) (PP (IN at) (S (VP (VBG scattering) (CC or) (VBG absorbing) (NP (NN light))))))) (. .)))
Sulfates, nitrates, and elemental and organic carbon are most effective at scattering or absorbing light.
(ROOT (S (NP (NNP Carbon)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (VBN found)) (NN element)) (PP (IN in) (NP (VBG living) (NNS organisms))))) (. .)))