Physics and Society

physics and society
Pollution
pollution is the direct or indirect changes in the components of the environment that deteriorates the environment .environment can be divided into air pollution ,water pollution ,land pollution or soil pollution.

These pollution are unfavourable and due to extra new substances or energy added unnecessary.These changes apposed the useful parts of the surroundings and they were weaken or destroyed .
Types of pollution :
  1. Air pollution
  2. Noise or sound pollution
  3. Land pollution
  4. water pollution
  1. Air pollution
There are oxygen ,nitrogen ,carbon dioxide,argon and others harmful gases.fore in elements or substances if mixed with them their original quality are destroyed. then atmospheric air is said Tobe polluted.By the increasing of air pollution day by day it is badly effect our environment.the various pollutants emitted by the exhausts of motor vehicles like trucks,buses ,tempo, etc are produces carbon dioxide gas,carbon monoxides gas,sulphur dioxide gas etc and unburnt hydrocarbons like octane,nitrogen oxides etc .similarly, industries are also sources of smoke,dust solid waste.

The main causes of air pollution is due to smoke, dust and very harmful gases co,co2,so2 etc.
The main effects of air pollution are;polluted air contain harmful particles,because of this many people suffer from respiratory and eye disease.

2.Noise pollution
The unwanted ,ha rash and loud sound is known as noise. The disturbance produced in environment by the undesirable loud sound of various kinds is called noise pollution.In short noise pollution is unwanted sound, crowd of people,radio,loud speakers on open field,means of transport ion and machines and other instruments are the man source of noise.

the main cause of noise pollution are busy market area,industrial area,produce much sound that makes noise pollution .the engines of vehicles as likes as aeroplane,buses,cars etc and it is horns of vehicles also produce noise pollution.

The main effects of noise pollution are:it effects to the lose our hearing power permanently,it affects our health that causes blood pressure etc.noise also affects our mind,which is harm our physical parts of the body.It also disturbs our digestive system,sleeping habit that cause several diseases .It makes us lazy and disturb our normal life.

3.water pollution
Different activities of people and wastes from industries pollute water.when pollutants change physical and chemical property of water dirties quality as different from original one. Thus the change of the state of water in such a way that it is not useful to use by using being is called water pollution.

The main causes of water pollution are:wastes of hospital, laboratory, industry and work shop contain harmful chemical and wastes.If they are mixed with water sources they pollute water sources.

The main effects of water pollution are:polluted water generates bad smell to its surroundings.It pollutes settlement area and even the environment.

We control water pollution by wastes water of industries and factories should be property treated before distance to outside either land or water sources. similarly solid and waste, dirty water of hospital, laboratory and industries should be processed properly for controlling water pollution programs should be launched at central and local levels.

4.Soil or land pollution
We live on the land and land have their own value in environment. People throw out wastes such as broken glasses, dirty things and other materials that are not useful to them. some of these waste materials that or bi degradable decay after sometime and mixed with solid . such water materials do not pollute the environment . the other materials such as plastic, broken glass, vehicles and mechanics are not degradable and remain on the land for longer period that chemical properties of the land. Thus detericration of land due to accusation of waste materials on it is called land pollution.

The main effects of land pollution id due to chemical fertilizer and poisonous like pesticide is harmful to plants,animals and other living beings. In accordance of food cycle,such poisons are transformed to human beings through the food they eat. land pollution affects natural setting of land and cultural heritage such as religious place, monastery and other heritage sites.

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