7:19 مساءً الأربعاء 19 ديسمبر، 2018

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the pollution is the biggest one problems of this age .



there are
many kinds of pollution that make life difficult, unhappy and unhealthy.
the first kind is the most dangerous one which is air pollution .



it is
caused by factories and cars sending out smoke.

this kind is commonly
found industrial and big cities.

in such cities ,

air is not clean and
unhealthy.
the other kind is water pollution .

factories pour chemicals into nearst
seas and rivers.

it is also caused by tankers spilling oil or towns
pouring waste.

those poisonous chemicals and waste make water dirty and
unhealthy to drink .



they also kill fish that people eat.
many countries work hard to stop pollution and thy cucceeded.

air and
water on their cities become much cleaner.

they now breathe and drink
fresh and healthy air and water.

 


Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the physical systems or living organisms they are in.[1] Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy.

Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels.

Pollution is often classed as point source or nonpoint source pollution.

 

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