The boundary between Earth and sky is known as the horizon
the answer is horizon
The interface of the sea and the earth is "the sea bed" the point at which the seabed stops being covered by the sea is called "the shore".
At sea level, the horizon appears to be the point where the sky seems to meet the ocean. This is due to the curvature of the Earth, which creates the illusion of a flat line separating the sky and the sea.
Horizon d is the point at which the observer's line of sight meets the horizon, creating a horizontal line separating the sky from the earth. It signifies the boundary where the sky appears to meet the ground or sea in the distance.
They both stretch out so far. And the world is round. So you cant see strait ahead. when the sky and sea meat, I suppose that is the edge. The turning point in which the earth rounds at. You know what I mean?
It is the horizon.
The line where the sky and the earth or sea appear to meet is called the horizon.
The Estuary.
Madrid is at least 200 miles from the nearest point of the Mediterranean Sea which appears to be the closest ocean or sea. The closest point is probably somewhere around Valencia.
Sea lion's have an adaptation called countershading. When a predator looks down into the sunlight zone the sea lion appears dark, when a predator looks up the sea lion appears lighter as to blend into the light above.
The height above sea level of any point on Earth's surface is called its elevation.
It is called sea level.