Question

2 Points

Answer 1

I think it is D, I hope this helped

Answer 2

Answer:

The Correct Answer is D

Explanation:

• Strength is contained in decibels and is observed as sound amplification. Thus, the sound is proportional to the amplitude of the sound wave.
• The repetition of a sound wave is recognized as pitch. People can recognize pitches within the acoustic spectrum of 22 to 20,000 Hz, but we can't recognize ultrasound or infrasound.