As with all boats, a submarine does not weigh as much as the amount of water it displaces. To go under the water's surface, it pumps water into special tanks (ballast tanks), and to rise up again those pumps force the water out of the ballast tanks and back into the sea.
Ans 2 - Submarines can go deep and rise again by using water ballast and air pressure, as planned by the captain. -Unfortunately, when things go wrong, submarines DO sink.
You drag the word "submarine" itself onto the submarine. Then you wait for it to sink.
because the submarine has the water tank.when the tank is filled then submarine sink in the water.and when the tank is empty then submarine float in water.
The Confederate submarine 'H L Hunley' was the first submarine to sink an enemy ship
put the word submarine on it
A submarine is to spy on ship movements and if necessary sink ships
A submarine
You grab the word submarine and pull it down.
You have to bring the word submarine down to the bottom of the screen.
The H. L. Hunley was the name of the Confederate submarine that was the first combat submarine to sink an enemy ship.
both. they are able to control it
A submarine is made from strong material so it can withstand the tremendous pressure at depths.
you shoot a cannon.