Question

what is a sound and what its effect and causes

Answer 1

Answer:

something that you hear or that can be heard

आवाज़, ध्‍वनि (ऐसी चीज़ जिसे हम सुनते हैं या जो हमें सुनाई देती है)..

The Causes and Effects of Noise Pollution. Although sound is something that is essential within our daily lives, noise is not. Sounds that cause discomfort to the ears, that produce unpleasant effects, or are unwanted, are considered to be noise.

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