water pollution class 9 ppt ch 14 natural resources by vibhuti

1. Water pollution
Ch 14 natural resources
(bio)
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2. Introduction
o Water is a precious resource and
without it life not possible on
earth.
o Water is being polluted day-by-
day because of excessive and
careless use that's why the
percentage of available drinking
water is decreasing.
o The effects of water pollution
are extremely harmful for all
living and non-living objects.

3. Water pollution
o Water pollution can be
defined as presence of
solid, liquid, and gaseous
contaminants in such a
concentration that may alter
the quality of water
o The addition of excess
material or heat in water
which can cause harm to
living organisms or which
impairs the beneficial use of
water
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4. Causes of water
pollution
The principle sources of
water pollution resulting
from exploration to
production operations are :
 Domestic waste
 Sewage system
 Solid and Industrial waste
 Acid rain
 Oil spills
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5. One of the less spoken
causes of water pollution :
RELIGIOUS PRACTICIES
In Hinduism, it is believed that , taking
a ‘dip’ in ‘holy water’ washes away the
sins of mortals and is a ritual often
followed during various festivals.
People in India are associated
emotionally and spiritually with water
bodies like Yamuna and Ganga. The high
organic matter and pollution load of
pilgrims on the water bodies like
bathing, adding ashes, flour, floral
offerings and urination devastates the
quality of water

6. Effects of
water
pollution :
 Destruction of aquatic
flora and fauna
 Shortage of drinking
water
 Contamination of food
chain
 Multiple water-borne
diseases
 Infant mortality
and many
more.............

8. The end