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.

Answer 1

Your answer would be B. An elevation at sea level
This is because if you picture it like a grid, -20 on the y axis is below 0, and 0 on the y axis is the y axis, so it would be on sea level.

I hope this helps!