Question

3. Fill in the blanks.
1. Loudness of a sound
with increase in the distance between the listener and
the source
2. The characteristic of a sound which distinguishes a shrill sound from a hoarse one is
called
3. A longer string will produce a sound of a
pitch.
4. Drum produces sound due to vibration of its
5. Unpleasant sound that is very loud is called
6. Humans can pick up sounds in the range of
to
7. Sound of about
decibels or more causes many health hazards.
8. Constant exposure to sounds above 80 dB can cause
monts​

Answer 1

Answer:

I don't know.

Explanation:

Because I didn't study it.