In the image below, which region is showing an abnormally high sea level?

C is showing an abnormally high sea level.

Explanation:

In the image, zone C is colored red, which indicates a range between 30 and 40, is out of the ordinary, as indicated by the convention.

Zones B and D have an approximate value of 10 represented with the color yellow. Zone A represented with the color blue -10.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.