Aship's foghorn will probably have a high pitch low amplitude low pitch

low pitch

Explanation:

A ship's foghorn will probably have a low pitch.

A ship’s foghorn is a very loud low-pitched horn that produces a loud noise to warn sailors and ship captains of navigational hazards such as headlands, rock outcrops, shoals or other dangers when it is very foggy. Foghorns are also used in light houses. Gongs or bells that had to be struck manually were initially used as audible fog signals before they were later replaced by foghorns.

answer; three;

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.