"On the top of Mt. Everest, the tallest mountain on earth, the air pressure is one-third of what it is at sea level."
Couldn't it be where instead of what? And what does "what" refer to, here?
anonymous Couldn't it be where instead of what? No, that is not possible. anonymous And what does "what" refer to, here?
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anonymousCouldn't it be where instead of what?
No, that is not possible.
anonymousAnd what does "what" refer to, here?
air pressure