Question

Please help me -

1. The sound above ____ DB
is physically painfull.

2. Normal Breathing means __
DB.

3. Sound reaches to our ear by
_____.

4. A person having patil hearing loss can hair properly by using a device called ___.

5. A body can produce sound
by ______.


THE QUESTION U SEE ABOVE ARE FROM THE SCIENCE CHAPTER ' SOUND '.

Please help me .......​

Answer 1

Answer:

bhai pura paper hi copy paste kardiya kya

Answer 2

90 DB answer is (1)

Explanation:

sound above 90 DB can lead