It is a submarine.
A submarine is a ship that can travel underwater.
A sea rover could be a pirate, or a pirate's ship. Or even someone who travels extensively on the sea.
The waves on the sea's surface are tranverse, the waves below the surface are longditudinal.
The surface is 1300 feet below sea level
The greater the depth the greater the pressure.
Pressure increases the deeper you sink beneath the surface of the sea. So 20 metres below the surface has more pressure than 10 metres above the surface.
Rivers' surface located in deep valleys can be below of the ocean surface. Furthermore, there are underground rivers which certainly are below sea level, depending on how deep such rivers are placed below-ground.
To the surface where the ship is. It then goes to the bottom of the sea.
No, its surface and shores are 423 metres below sea level.
About 70%
They are chunks of floating ice drifting away from polar regions. The density of ice is just a little less than the density of sea water, so most of the volume of an iceberg is below the surface, and so a small-looking iceberg can have a huge volume of ice below the surface. The Titanic ran into an iceberg and was holed below its waterline so the water rushed in and the ship sank.
The pressure at 100 meters below the surface of sea water with a density of 1150kg is 145.96 psi.