Question

What is the safe level of noise intensity for humans?
a. Up to 90 decibels
b. up to 70 decibels
c. up to 80 decibels

Answer 1

Up to 80 decibels 

SO the option (c) is correct

Answer 2

Hello yaar,

The safe level of noise intensity for humans is up to 80 decibels.

Therefore option c is correct

hope it helps u....