( It ( ( is ( ( called ( `` ( dormant '' ) ) ) ( because ( plants ( ( are not ) ( ( ( actively growing ) , ) ( due ( to ( ( ( the ( shorter days ) ) and ) ( cold weather ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (VP (VBN called) (S (ADJP (`` ``) (JJ dormant) ('' ''))) (SBAR (IN because) (S (NP (NNS plants)) (VP (VBP are) (RB not) (ADJP (ADJP (RB actively) (JJ growing)) (, ,) (ADJP (JJ due) (PP (TO to) (NP (NP (DT the) (JJR shorter) (NNS days)) (CC and) (NP (JJ cold) (NN weather))))))))))) (. .)))
It is called &quot;dormant&quot; because plants are not actively growing, due to the shorter days and cold weather.
(ROOT (S (NP (JJ Many) (NNS plants)) (VP (NN respond) (PP (TO to) (NP (NP (DT the) (NNS days)) (VP (VBG growing) (ADJP (JJR shorter)) (PP (IN in) (NP (DT the) (NN fall))) (PP (IN by) (S (VP (VBG going) (ADJP (JJ dormant))))))))) (. .)))
Many plants respond to the days growing shorter in the fall by going dormant.