At Mercury, the Ohio Players enjoyed their greatest success; not only did their sound coalesce, but they became notorious for their sexually provocative LP covers, a tradition begun during their Westbound tenure.
Objects float when the volume of water they displace is less than the volume of the objects themselves. When objects sink, the volume of water they displace is greater than the volume of the object. The principle may seem relatively simple: Light objects float and heavy objects sink.
If the density of bottle (with or without air within) is higher than that of water, the bottle sinks; if lower, it floats. If the densities of both, bottle and water, are the same, the bottle neither sinks nor floats - then the bottle gets submerged in water, it neither sinks nor floats.