( ( ( The hale ) ( formed ( by ( the impact ) ) ) ) ( ( is ( ( ( about 200 ) meters ) deep ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN hale)) (VP (VBN formed) (PP (IN by) (NP (DT the) (NN impact))))) (VP (VBZ is) (ADJP (NP (QP (RB about) (CD 200)) (NNS meters)) (JJ deep))) (. .)))
The hale formed by the impact is about 200 meters deep.
(ROOT (S (NP (DT The) (JJ photic) (NN zone)) (VP (VBZ extends) (ADJP (NP (CD 200) (NNS meters)) (JJ deep))) (. .)))
The photic zone extends 200 meters deep.