Fishing boats use sonar to locate schools of fish. What characteristic of sound is most important for this application of sonar? Sound waves reflect off some surfaces
Sound waves diffract around corners
Sound waves interfere when they overlap
Sound waves spread out from a source

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.