Hello!
Some environmentalists question the prudence of
exploiting features of the environment, arguing that
there are no economic benefits to be gained from
forests, mountains, or wetlands that no longer exist
My question is: Does "That no longer exist" apply to wetlands or to the other elements on the list as well?
I think there are no rules as to what
"that"-modifier modifies in such constructions. Here, logically (from the context), we can deduce that it modifies all nouns in the list (
forests, mountains, or wetlands), as was pointed out by Aditya8062.
However, I think it is possible to construct a similar sentence acceptable on the GMAT in which
"that" modifies only the last element:
George left at home his documents, money, and a ticket that he obtained previously for this very occasion.
"That" is a relatively flexible modifier and can modify many things (nouns) depending on the context. If I saw a sentence and could figure out from the meaning the correct antecedent for
"that" (and this "rightful" antecedent were not separated from
"that" by a verb), then I wouldn't eliminate on the issue of modifiers.
However, it might be useful to pay attention to the verb in
"that"-clause (whether it agrees in number with "its" noun) -- check problem 96 in OG Verbal Review, second edition.
how would you write this sentence in which I wish to add the modifier "that no longer exist" only for the last element?
Hello, TathastuGMAT! If I understand you correctly, you want for "that no longer exist" to modify explicitly only one element ("wetlands"). If this is the case, my suggestion is to put this element first in the list:
wetlands that no longer exist, forests, or mountains.
I agree with Aditya8062 that
"which" by itself should be followed by a comma on the GMAT.
For myself, I have chosen not to rely much on OG explanations (but I usually read them nonetheless). However, we can rely on OG problems themselves (and their correct answers) because they are official problems. Never once did I come across a problem in which
"which" is used (by itself) as a restrictive modifier (=without a comma).
Some problems with "which":
OG13: N 12, 48, 73, 102, 106
OG Verbal Review, second edition: 71, 75, 88, 90, 92, 100