Explain the Term: Decibel

थोडक्यात उत्तर

The unit to measure sound is called decibel.

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पाठ 13: Pollution - Explain the Terms

पाठ 13 Pollution
Explain the Terms | Q 8

What is the safe limit of sound level in dB for our ears?

Write the answer in your own words.

What is meant by noise pollution?

List two major harmful effects of the following:

Prolonged noise such as the one produced by crackers.

Explain the Term: Ammonification

Noise pollution is a ______ issue.

How is noise a source of pollution?

Suggest three measures to limit noise pollution in your locality.

What is the name of the sound produced by irregular vibrations?

Name two harmful effects of noise pollution.

Define the following term:

Noise