Sentence Correction (SC) | Re: Sound can travel through water for enormous distances, prevented from

Hi egmat, GMATNinja, KarishmaB.

I have a question on by vs as a result of. It is stated that by is used when there is an agent of an action, however here there is no action, the dissipation occurs because the boundary walls already exist. So shouldnt the correct form be prevented from dissipating as a result of the boundary walls? As the boundary walls are not agent but because of their existence the sound gets dissipated.
Thanks

Statistics : Posted by arry232 • on 07 Apr 2009, 11:27 • Replies 114 • Views 147313

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