Sonar is used to find the location of an object, and sonar bounces sound waves off the bottom of the ocean. Given these facts, bouncing sound waves off the bottom of the ocean is used to find what among the following options:
- locations of objects
 - body water
 - one celled organisms
 - hidden communities
 - atlantis
 - underwater cities
 - food and shelter
 - electromagnetic energy


 

 locations of objects        