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1. These are mechanical waves that need a medium to be propagated and easily detected though the human ear.


A. Electromagnetic waves
B. Light waves
C. Sound waves
D. Surface waves


2. A sound wave cannot travel though wich of the following?

A. Air
B. Mental
C. Water
D. Vacuum



1 These Are Mechanical Waves That Need A Medium To Be Propagated And Easily Detected Though The Human EarA Electromagnetic WavesB Light Waves C Sound WavesD Sur class=