برقراف متوقع 60% والله العالم دخوله في الامتحان عن البيئة
السلام عليكم
The Environment:
By environment we mean the air, the sea, and the land which surround us.
This environment should be kept clean so as to make our life better. Man
Pollutes the environment and destroys it.
Air pollution:
Cars and factories send out harmful gases in to the atmosphere.
Moreover, the burning of fossil fuels- coal and oil- in factories increases
the amount of co2 which causes dangerous pollution of the air we breathe.
Land pollution:
land pollution causes great harm to people, animals and plants. Rubbish pollutes the environment. In the countryside many plants die mostly due to the use of
Pesticides. Using these pesticides year after year causes the crops to become
harmful to man. These poisonous substances get into the human food and may
cause fatal diseases such as cancer.
Water pollution:
Pollution of seas and rivers is an important problem as man needs pure water
For drinking. Fish,animals and plants in rivers and seas are also harmed by
This type of pollution. Detergents, poisonous waste products of factories and
Pesticides as well as weed- killers cause this type of pollution. Sewage is an-
other source. One of the most serious causes of pollution of seas is oil which
comes from tankers. When it escapes into the sea it forms large slicks, killing
sea animals and birds. These slicks may also spread out onto beaches and
spoil them .
Noise pollution:
Noise is another form of pollution.It is something most of us experience every
day. Noise is defined as unpleasant or unwanted sound. It could be caused by
radios,Tvs,cars,lorries,planes or road works.
It affects us in the city or in the countryside, in the classroom, at home and
at work. Noise breaks up activity,disturbs sleep, interferes with work and can
hinder learning at school. The recent rise in noise levels is due to the growth
of population in big cities, the increase in the number of vehicles and planes
and the spread of machines used in almost every activity.
Noise increases stress which can lead to high blood pressure, heart diseases
and damage to hearing.