The document discusses the global water cycle and how the same water on Earth has been circulating for millions of years. It then discusses various topics related to water, including that only a small percentage of water is fresh and available for human use, ways that water is polluted, the relationship between water and health, and methods for conserving water resources like rainwater harvesting.

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Did you know that the water you drank this
morning might have been the same water a
dinosaur drank millions of years ago?
There is the same amount of water on Earth
today as there has always been.The water
keeps moving around in an endless cycle
called the water cycle.

4. Precipitation
Moisture
over land
Evapotranspiration
Infiltration
Moisture
over land
Evaporation from
ocean
EvaporationEvaporation
Soil Moisture

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7. Pollution of water
 DOMESTIC POLLUTION
Safe water supply
Sanitation – open defecation
Drainage
Solid waste disposal
 AGRICULTURE POLLUTION
Pesticides
Fertilisers
Over extraction of ground water

8. Water and health
 The body is comprised of 75%of
water.
 We cannot live without water for
more than 24 hours.
 1.8 million people die from
diarrhea death where 90% are
children.
 88% is attributed to unsafe water
supply, inadequate sanitation and
hygiene.

9. Amount of fresh water in the world …
Of all the water on Earth, only a small amount is
available for us to use. It's true!
96.5% of the Earth's water supply is salt water.
Only 2.8% is fresh water!
•That 2.8% is divided like this:
•0.76% is groundwater (we can use some of this
water)
•0.0132% is in lakes and streams (we can use some of
this water)
•1.74% is in glaciers and icecaps
•0.001% is water vapor

10. Sanitation
 Don’t defecate in the open
 Always wash yourself
 Use toilets where they are
 Don’t defecate near water sources
 Dispose of your waste in a responsible manner
 Reuse your bathing water

11. Environment
 Don’t throw your household waste near
drinking water sources
 Clean your house and surroundings daily
 Don’t throw paper, plastic, households wastes
into open drains that run through the street
 Throw litter into a bin and dispose of it
properly
 Don’t cut down trees but grow more plants
 See that the drains are not blocked

12. In 1955, an Indian citizen had 5000 cubic
meters of water at her disposal.Today
she has less than 1500 and it will get
lesser in the future.
 More than 1 billion people in the world
have no access to improved water
sources and nearly 2/3 live in Asia.

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14. Saving water starts with you
 Wash fruits, vegetables in a pan of water
rather than running water
 Collect the water you use for rinsing
produce and reuse it to water houseplants.
 Check your water meter and track your bills

15. -RAIN WATER HARVESTING.
-WATERLESS CAR WASHES
-DRIP IRRIGATION
-HIGH EFFICIENCY CLOTHES WASHERS
-GARDEN-HOZE NOZZLES
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16. Methods of saving water
Rain water harvesting in Chennai
and Bangalore

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