Final answer:
To go diving in the sea, you would need to use an aqualung, also known as a scuba tank, which provides a constant supply of breathable gas underwater.
Step-by-step explanation:
In order to go diving in the sea, you would use an aqualung rather than an aquaplane. An aqualung, also known as a scuba tank, is a piece of equipment that allows divers to carry their own supply of breathing gas, usually compressed air, while underwater. It is essential for divers to use an aqualung to have a constant supply of air while submerged.
Unlike an aquaplane, which is a type of water vehicle used for gliding above the water surface, an aqualung enables divers to breathe normally underwater by providing them with a continuous flow of breathable gas.