The amount of sunlight increases
A submarine is a ship that can travel underwater.
A submarine can surface from underwater in a matter of minutes, typically taking around 1-3 minutes to reach the surface.
Royal Navy submarine
A submarine is kept at, or close to, surface air pressure.
After you find the submarine you use dive up to the surface.
Below the surface............
Enemy surface ships are the main target of submarine warfare
A submarine is a sea-going vessel, both on the surface and under the water.
When a floating submarine submerges, it deliberately goes beneath the surface - which it is designed to do
A submarine has tanks that are called ballast tanks. When these tanks are flooded with sea water, the submarine sinks because the sub weighs more than the water it displaces. To rise again, the sub reduces its weight by pushing compressed air into the ballast tanks. The air forces the sea water out and sub returns to the surface. It maneuvers using its rudder and planes. A link is provided.
A submarine is a ship that sinks itself in a controlled manner by flooding tanks with water and returns to the surface in a controlled manner by blowing the water out of those tanks with compressed air. The main uses of submarines so far have been military, where a ship that cannot be seen is needed.
A submarine can operate under water while other ships cannot, and a submarine can surface after going under water, while other ships can't.If everything is working correctly, a submarine can surface after sinking, while other ships cannot.