THIS PRESENTATION IS BEST

1. Made by: Mohsin Ashfaq..

2. Environmental
crisis
Air pollution is the
introduction into the
atmosphere of
chemicals, particulate
matter, or biological
materials that cause
discomfort, disease, or
death to humans,
damage other living
organisms such as
food crops, or damage
the natural
environment or built
environment

3.  Air pollution figures are gathered all over the
globe, but it takes some serious effort to bring
them all together so that countries and cities
can be compared. The World Health
Organisation (WHO) has valiantly attempted
just this today in their Database of outdoor air
pollution in cities.

5. The waste we throw in the rivers that
make the water dirty and that
evaporate and then some people drink
it. And it is also harmful for the marine
life…!!!!!!

6. THE AIR POLLUTION. GOES IN WATER

7.  India, Pakistan and Mongolia were also
amongst the worst for pollution in cities
whilst Canadian and American cities had
some of the best scores. For
example, Washington has a score of just
18 micrograms per cubic meter of
airborne particles smaller than 10
micrometers.

8. PAKISTAN RIVERS U.S.A RIVERS