In which unit sound is measured?

What is the permissible noise limit of 120 db?

Wildlife faces more problems than humans due to noise pollution, because animals dependent on_______________

Following scale is used for loudness of sound or noise

Following is used for measuring intensity of sound

Sounds which are pleasant to our ears are called

Lower medial lethal dose, higher is the

Sound which has Jarring effect on ears is

A safe level of noise depends on

Main sources of noise pollution are