Question

A student makes a sound by blowing into the mouth of an empty soda bottle. How could the student make the sound louder?

A. Increase the frequency by adding water to the bottle.

B. Decrease the frequency by blowing into a different bottle.

C. Decrease the amplitude by blowing with less force.

D. Increase the amplitude by blowing with more force.

D. is correct.​

Answer 1

I think D is the answer to the question