Question

sound waves need a medium in order to travel. so, as sound waves pass through a medium, the particles in the medium pass the sound along. sound can travel through solid, liquid, and gas mediums. the speed that sound travels depends on the medium it is traveling through. for example, sound travels faster through land than it does through water, and sound travels faster through water than it does through air. where would sound not be able to travel? through the ocean through the air through outer space through the ground

Explanation:

Sound is a mechanical wave that requires a medium (like solids, liquids, or gases) to travel. The ocean (liquid), air (gas), and ground (solid) are all mediums. Outer space is mostly a vacuum with no medium for sound waves to propagate.

Answer:

through outer space