Question

irrelevant answers will be report ​

Answer 1

Answer:

1) infrasonics - dog

2) second - time period

3) frequency - hertz

4) irregular vibration - noise

5) ultrasonic - elephant

6) regular vibrations - musical sound

Answer 2

Answer:

1) infrasonics - dog

2) second - time period

3) frequency - hertz

4) irregular vibration - noise

5) ultrasonic - elephant

6) regular vibrations - musical sound

Explanation:

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