( ( Because ( soil ( takes ( ( thousands ( of years ) ) ( to develop ) ) ) ) ) ( , ( ( conservation ( of soils ) ) ( ( is critical ) . ) ) ) )
(ROOT (S (SBAR (IN Because) (S (NP (NN soil)) (VP (VBZ takes) (S (NP (NP (NNS thousands)) (PP (IN of) (NP (NNS years)))) (VP (TO to) (VP (VB develop))))))) (, ,) (NP (NP (NN conservation)) (PP (IN of) (NP (NNS soils)))) (VP (VBZ is) (ADJP (JJ critical))) (. .)))
Because soil takes thousands of years to develop, conservation of soils is critical.
(ROOT (S (NP (NNP Soil)) (VP (VBZ is) (NP (NP (DT a) (JJ renewable) (NN resource)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB take) (NP (NP (CD thousand)) (PP (IN of) (NP (NNS years)))) (S (VP (TO to) (VP (VB form)))))))))) (. .)))