The friend that is closest to the sea level among all is; Keanu
Usually when we are talking about elevations with respect to the given activities, the reference point is usually from the sea leval.
Now, from the above statement it means that the higher the positive elevation, the farther it is above the sea level while the more negative the elevation, the further it is below sea level.
Now, we are told that;
Leilani is hiking in Oahu at 952 m in elevation.
Keanu is snorkeling at -2 m in elevation.
Kiah is scuba diving at 608 m in elevation.
Kanoa is enjoying a picnic at 4 m in elevation.
Now, as earlier said, we can esily say that Leilani and Kiah are farthest from the sea level.
Thus, Keanu and Kanoa are closest to the sea level.
However, Keanu is only 2 meters below sea level while Kanoa is 4 meters above and as such we can say that Keanu is closest to the sea level.
Read more about Elevation from sea level at; https://brainly.com/question/22136251
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