Comment above 100 percent correct
I believe it is b electric energy etc...
Answer:
Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point.
Explanation:
Because of the sea waters density. If an object is less dense than the water it would not float
