The yield per acre of coffee berries varies enormously, because a single tree, depending on its size and on climate and altitude, is able to produce enough berries to make between one and twelve pounds of dried beans a year.
Someone told me the "depending" in this scentence couldn't be replaced by "dependent", cause "depending" modifies "is able to produce"，if it was replaced by "dependent"，the new past participle
(dependent)would modify "single tree". Is there anyone tell me why?
GMAT Forum