ÊÝÖá
Pollution is contamination of land, air and water. Motor vehicles are in abundance in big cities as well as there are numerous factories and industries also. Motor vehicles emit carbon monoxide and hydro*carbons. The factories contaminate air by smoke. Noise of factories results in sound pollution and waste of factories pollutes water and land. Delhi is third most polluted city in the world. Pollution here is three times the permissible limit. It may be nine times in eight years if some efforts are not made. Plastic is another big nuisance causing pollution. It never decays. If we burn it. It pollutes air. If we dump it into river or sea it pollutes water. Chemical fertilizers used by farmers are another source of pollution to land and water. In order to check pollution the polluted water from factories should be treated before it is disposed of in rivers. Plastic and other material should be recycled. New techniques should be adopted in motor vehicles. These measures can solve the problem of pollution.
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.
ÇáãÕÏÑ : ãäÊÏì ÚåÏ ÇáÃÕÏÞÇÁ: https://leenamel.ahlamontada.net/t148...#ixzz41AyCevsg
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.
ÇáãÕÏÑ : ãäÊÏì ÚåÏ ÇáÃÕÏÞÇÁ: https://leenamel.ahlamontada.net/t148...c#ixzz41AyL563T
( ÊÞÑíÑ Úä ãÔÇÑßÉ ÓíÆÉ )¡ æ ÇáãæÌæÏÉ ÃÓÝá ßá ãÔÇÑßÉ .
2016-03-02, 17:05
ÔßÑÇ ÑÈí íÚØíß ãÇÊÊãäÇí
ÇáÚÑÖ ÇáãÊØæÑ
