The document discusses the importance of safe drinking water for public health, especially in developing countries. It notes that water needs to be accessible, adequate, and free from contamination. It then provides background on water, describing its molecular composition, the different forms it takes on Earth, and where it can be found. The document outlines some key reasons why water is needed, including for bodily functions, industry, agriculture, and more. It recommends daily water intake amounts and notes that certain beverages like coffee should be avoided. Finally, it provides some tips for conserving water in homes, gardens, agriculture, and in general.

2. Introduction
 Health care to a community cannot be
provided without ample and safe drinking
water
 Health which affects humanity especially in
developing countries is due to lack of safe
and wholesome water
 Water that is easily accessible, adequate in
quantity, should be free from contamination,
safe and readily available throughout the
year.

3. What is water?
• Water is made of tiny molecules of hydrogen and
oxygen.
• Each one is so small that you can’t see it even
with the most powerful microscope.
• Pure water has no colour, no taste and doesn’t
smell of anything.
• Water exists in three forms on the Earth: > solid
(ice, hail, snow or frost) > liquid (in lakes, oceans,
rain, dew, fog or mist) > gas (steam or water
vapour - "invisible" water in the air).

4. Where can we get water?
About 97% of the water on the Earth's surface is in the
world's oceans.
This is where you can find most of the other 3%:
Lakes
Rivers
Polar ice caps
Clouds
Rain
Stored in rocks
Sea ice

5. Why do we need water?
To carry nutrients and waste in the
body.
To lubricate joints, digestive tract
and body tissues
. To cool the body, especially during
periods of physical activity.
To be used in factories, agriculture,
hospitals, hotels, etc.

6. How much water do we need?
 Most people need about 6-8 glasses of water each day.
 Inadequate fluid intake can lead to constipation and
dehydration.
 Caffeine-containing beverages (coffee, tea, colas, etc.)
should not be drunk because caffeine actually causes you
to lose water.
 More water may be needed during times of fever, or
illness.
 Athletes should drink additional amounts before, during
and after exercise.

7. Saving water in…

8. Saving water in homes
Running water is required for an endless
list of uses in and around the home.
Imagine living in a house without running
water...For some this might be a nightmare
but for many it is reality. This is because
some of us are not careful while using
water in our homes! So, others suffer
because of us.

9. Saving water in gardens
There are lots of easy and effective ways to reduce
the use of precious drinking water on our gardens.
Many gardens contain plants inappropriate for our
environment and we tend to water far more than
necessary, because we don’t know what our plants
really need. We can't afford gardens that require
excessive amounts of water.

10. Saving water in agriculture
While agriculture is one of our country's most
significant water users, some innovative solutions
have been developed to improve water use efficiency
and maintain or even increase yields. COTTON
Efficient water management is vital for cotton growers
to achieve high yields. RICE .Rice is the main crop of
India and it requires a lot of water for sowing,
growing, cleaning, etc. DAIRY The dairy industry uses
water for irrigation of pastures, watering stock and
cleaning dairy sheds

11. Water saving tips

12. A dripping tap could waste as much as
90 liters a week. Brushing your teeth
with the tap running wastes almost 9
liters a minute. Rinse out from a
tumbler instead. Cool water kept in the
fridge means you won't have to run the
tap for ages to get a cold drink. Don't
use your washing machine until you've
got a full load. A full load uses less
water than 2 half loads.