The best description would be: An elevation at sea level would be best represented by the number 0. Therefore, the correct answer is B. An elevation at sea level.
How to get the elevation
The Positive numbers typically represent elevations above sea level.
Negative numbers typically represent elevations below sea level.
Given this convention, an elevation of 0 would best correspond to sea level. Sea level is the baseline reference point used to measure elevations.
It is neither above nor below sea level, making it neutral or at 0 elevation. Therefore, among the options provided, an elevation at sea level aligns best with the number 0.
Question
If an elevation 20 meters below sea level is represented by the number -20, which of the following can best be represented by the number 0? A. An elevation 20 meters above sea level. B. An elevation at sea level. C. An elevation 20 meters below sea level. D. An elevation 40 meters below sea level.