Question

How does the sighting of a ship from the seashore prove that the earth is round in shape?

Answer 1

The sighting of a ship from the seashore proves the Earth is round because, as the ship moves farther away, the bottom of the ship disappears first, followed by the upper parts. This would not happen if the Earth were flat, where the entire ship would remain visible at once. The gradual disappearance from bottom to top occurs due to the Earth's curvature.