Pollution is one of the biggest problems today and comes in many forms, especially air and water pollution. Air pollution is caused by factories and cars releasing smoke into the air, making cities unhealthy places to live. Water pollution occurs when factories dump chemicals and waste into rivers and seas, or when oil spills into water, poisoning it and killing fish. Everyone must work to reduce pollution to protect human health and the environment.

1. • NOUR EL HOUDA
• TLIJANI
• 8B2

2. • Slide 1
• presentation
• Slide 4 Slide 5
• Slide 6
• conclusion

3. presentation
• Class:8b2
• The date:12/04/2014
• conclusion

4. • 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 .

5. • 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.

6. • 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.

7. conclusion
• 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 energ