Noise pollution, Biology

Assignment Help:

Sound is a main mean of communication and entertainment and is also very effective alarm system for some animal. A loud and unwanted or unpleasant sound causes discomfort and is called noise.

The release of unwanted sound in the atmosphere is called noise pollution.

The unit of sound level is decibel (dB). Noise level can range from 0 to more than 120 dB. Noise beyond 120 dB cause discomfort. The intensity of normal conversation sound range between 35 dB to 60 dB.

 

 


Related Discussions:- Noise pollution

Production of substances - responses to infection, Production of substances...

Production of substances interfering with virus proliferation In some cases plants are known to synthesise chemicals that inhibit crucial functions of pathogens. This makes pl

Define oral rehydration for treatment for pem, Define Oral rehydration for ...

Define Oral rehydration for treatment for pem? Since diarrhoea is very common in severe PEM, correction of dehydration is the first step in the treatment. Homemade (salt-sugar

Recent concerns of food safety, Normal 0 false false fal...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Explain about chthalamus, Explain about chthalamus The realised niche o...

Explain about chthalamus The realised niche of Chthalamus is reduced from its fundamental niche and it is limited to the upper tidal zone Lower  limits Out-competed

Vitamins requirements for ulcerative colitis, Q. Vitamins requirements for ...

Q. Vitamins requirements for ulcerative colitis? Vitamins: Commercial multivitamin preparation should be administered orally especially the ones needed for the healing process

How are water and mineral salts tranport in the plant, How are water, miner...

How are water, mineral salts and food (sugar) transported throughout the plant? Water, mineral salts and sugar are transported throughout the plant through conductive vessels f

Explain about pre - diabetes, Q. Explain about Pre - Diabetes? Pre - Di...

Q. Explain about Pre - Diabetes? Pre - Diabetes is a condition where blood sugar level is above normal but below to be diagnosed as diabetes mellitus. It has been found that

Show how adaptation affecting taste quality, Q. Show How Adaptation affecti...

Q. Show How Adaptation affecting taste quality? Adaptation - A low concentration solution will not give any sensation after tasting a higher concentration solution due to the a

Explain the types of double beam systems, Explain the types of double beam ...

Explain the types of double beam systems? Following are types of double beam systems: a) Dual beam in space type b) Dual beam in time type In type (a) separate detecto

Cleavage and blastocyst, Cleavage and Blastocyst Even though the clea...

Cleavage and Blastocyst Even though the cleavage is complete and all the blastomeres are of more or less equivalent size. Synchronization of mitoses in the blastomeres is los

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd