Answer:
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.
