<p>Elephants have a sense of smell that is remarkably -----: they can reportedly smell water up to several miles away.</p>
<p>I put ubiquitous but the answer is acute :. I don’t understand how acute fits…</p>
<p>In my dictionary, the word “acute” matches because of its second definition: “highly developed; keen.”</p>
<p>A bit tricky.</p>
<p>acute means sharp ubiquitious means everywhere. It is saying that their sense of smell is sharp or well developed.</p>
<p>Yes, acute is commonly used to mean “sensitive” (in the perceptual sense) or “keen.” Why did you think that ubiquitous fit?</p>
<p>Thanks, I see why ubiquitous does not fit in.</p>