What are periodic changes in pressure that propagate through the air?(a) Air waves(b) Sound waves(c) Rate(d) None of the mentionedThe question was asked at a job interview.I'd like to ask this question from Speech Recognition in section Communicating, Perceiving and Acting of Artificial Intelligence

What are periodic changes in pressure that propagate through the air?(

1.	What are periodic changes in pressure that propagate through the air?(a) Air waves(b) Sound waves(c) Rate(d) None of the mentionedThe question was asked at a job interview.I'd like to ask this question from Speech Recognition in section Communicating, Perceiving and Acting of Artificial Intelligence
Answer» CORRECT answer is (b) SOUND waves Explanation: Sound waves are periodic changes in pressure that propagate through the AIR and it can be MEASURED by a microphone.

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