What is noise?
Answer: Undesirable and unwanted sound
Which pollution cause hearing loss in organisms?
What is the dB of a threshold of pain?
In anaerobic conditions, mercury is present in; metallic form and
Noise pollution effects marine animal's;
Main sources of noise pollution are
A safe level of noise depends on
Answer: level of noise and exposure to noise
Sound which has Jarring effect on ears is
Lower medial lethal dose, higher is the;
Sounds which are pleasant to our ears are called
Following is used for measuring intensity of sound
Answer: Sound level meter
Following scale is used for loudness of sound or noise
Wildlife faces more problems than humans due to noise pollution, because animals dependent on_______________
Which of the following sound is pleasant to our ears?
What is the permissible noise limit of 120 db?
In which unit sound is measured?
At what decibel instantaneous rupture of membrane happens?
What is the dB of a threshold of hearing?
Noise pollution can cause
Level of noise recommended in most countries is