What controls buoyancy?
It is the ability for an object to float. Buoyancy determines if the object is able to float in the water or not.Buoyancy can not only happen in water, other fluids are not prohibited. Buoyancy can depend on the fluid's density.If something is not or barely able to float, it is less buoyant.If something can float with little or no effort, it is more buoyant.