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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.
S
e.g., This is the man who planted the bomb in
the railway station.
(ii) Which refers only to things, animals and
babies.
e.g.,This is the bird which I saw.
The baby which was crawling is now
sitting.
(iii) That refers to persons, animals and
things. (That can be used a substitute of
wholwhich.)
e.g., The boy that fought in the street.
The book that is on the table is
mine.
(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.
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.
S
e.g., This is the man who planted the bomb in
the railway station.
(ii) Which refers only to things, animals and
babies.
e.g.,This is the bird which I saw.
The baby which was crawling is now
sitting.
(iii) That refers to persons, animals and
things. (That can be used a substitute of
wholwhich.)
e.g., The boy that fought in the street.
The book that is on the table is
mine.
(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.
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