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Thick smoke curling out of smokestacks, horrible-tasting chemicals in your drinking water, pesticides in your food-these are examples of pollution. Pollution is any contamination of the setting that causes damage to the setting or the inhabitants of the setting.

 There are several sorts of pollution, and there ar several pollutants. Some obvious sorts of pollution ar pollution of the air, soil and water. 

 Some less obvious or less salient, sorts of pollution ar hot, noise, lightweight pollution and green-house gasses. Air pollution may be caused by particles, liquids or gases that build the air harmful to breathe.

There are 2 main kinds of pollution : primary and secondary Primary pollutants enter the air directly, like smoke from factories and automobile exhaust.
Secondary pollutants ar chemicals that blend along to bemire the air, like mixtures of emissions or waste output, from vehicles and mill smoke 
Amendment to make a lot of dangerous pollutants within the air and daylight Soil pollution may be caused by pesticides, leak from chemical tanks, oil spills and different chemicals that get into the soil by merchandising or accidental contamination.
pollutionay also cause pollution once underground water becomes contaminated by returning into contact with the impure soil.
Water pollution may be caused by waste merchandise, sewage, oil spills and litter in streams, rivers, lakes and oceans. Some scientists believe that pollution is that the largest reason for death and sickness within the world, inflicting regarding fourteen,000 deaths in the world each day Radioactive pollution can be caused by leaks or spills of radioactive materials.
 Relative Pronouns
The main Relative pronouns are-who, which,
that, what, and also, as and but.
Usage of Relative Pronouns
(i) Who refers only to persons.
e.g., This is the man who planted the bomb in
the railway station.
(ii) Which refers only to things, animals and
e.g.,This is the bird which I saw.
The baby which was crawling is now
(iii) That refers to persons, animals and
things. (That can be used a substitute of
e.g., The boy that fought in the street.
The book that is on the table is
(iv) What refers only to things. However, there
is a great difference of opinion about its
proper nature
e.g., I know (that) what you say.
(That) what you say is incorrect.

  • Materials will return from medical sources, nuclear energy plants or laboratories that handle hot materials. 
  • Air, soil and water may be impure by radiation. 
  • It will cause injury to animals, each internally and outwardly,by eating, drinking or touching it. 
  • It can cause birth defects and genetic problems. I
  • It will cause sure cancers and different deadly diseases. 
  • Noise pollution may be caused by vehicle, craft and industrial noise.
  • It can also be caused by much say'?

onment ead, they have ome are small ells. Some are us flowers are e pollinated by ollen from one military or experimental sonar. Noise has health effects on people and animals. In Panimals, it it can cause high blood pressure, heart problems, sleep disturbances and hearing problems. In can cause communication, reproductive, and navigation problems-they have difficulty finding their direction. Sonar has even caused whales to beach themselves as a result of they reply to the echo sounder as if it were another whale.
Light pollution can be caused by advertising signs, stadium and city lighting, ri Lanka. Cacti te.

  1. When water nough to move to live the light caused bygh blood pressure and affect sleeping and lighting and other artificial (like traffic). 
  2. Artificial lighting has health effects on humans and animals, 
  3. In waking rhythms and immunity At might be a factor in some cancers, such as breast cancer. 
  4. In animals it will have an effect on sleeping and waking rhythms, navigation and reproduction
  5. In addition, gtoenhouse gases have caused a warming effect on the earth's climate.

Thegreenhouse gases ar vapor, carbon dioxide, methane and ozone. They are naturally-occurring gases within the atmosphere, but human activity has increased their concentration in the atmosphere. For example, the levels of carbon dioxide (CO,) in the atmosphere have risen due to the burning of fossil fuels.
 The effect is a rise in global temperatures. The higher temperatures cause the melting of glaciers, a rise in the water level of oceans and the disruption of both land and marine life, including that of humans. Although dioxide is important for plants to survive, it's conjointly thought-about to be a sort of pollution as a result of high levels of dioxide have caused the oceans to become more acidic people, it can cause em to the roots esert Most cact of water on the full-width

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