The big challenge for this century is to save our environment. The big challenge for this century is to save our environment. The big challenge for this century is to save our environment.

1. THE BIG CHALLENGE
FOR THIS CENTURY IS
TO SAVE OUR
ENVIRONMENT.
Sheikh Fahim Faysal Sowrav
Email: sffsowrav@teachers.org

2. INTRODUCTION
The ward environment means the surroundings or conditions
in which a person, animal, or plant lives or operates.
As we live in the environment and life is dependent on it so
it should be clean and also we should protect it.
In order to be safe and sound we have to save our
environment. But it is a big challenge for today's worlds to
save the environment.
An environment contains 4 major components. They are air,
water, soil and sound. If these can be protected from
pollution
We can save our environment.

3. AIR POLLUTION
Air pollution is caused directly through
our use of electricity, fuels and
transportation. Most of this air
pollution is caused by burning of fossil
fuels, such as coal, oil, natural gas,
gasoline to produce electricity and
power our vehicles. It is causing a
great harm to our environment as well
as to our life.

4. SOIL POLLUTION
Soil pollution is caused by the
contamination of soil by man-
made chemicals. This, in turn,
is caused by a variety factors,
the most glaring of which
includes chemical fertilizers,
mining and quarrying and
incorrect disposal of waste.

5. WATER
POLLUTION
Around half of the water
pollution is caused by sewage
and waste water. Each year ,
the world generates perhaps 5-
10 billion tons of industrial
waste much of which is
pumped untreated into river,
oceans and other waterways

6. SOUND
POLLUTION
The main sources of sound
pollution include
machines and mechanical
equipment, firewarks,
vehicles, music
performances.

7. STEPS TO
PROTECT THE
ENVIRONMENT.
Now a days it is becoming
very difficult to protect our
environment. But it is our
duty to protect it because we
can not exist without
environment. we need to take
proper steps to save the
environment.