M.Faizan Arshad
Environmnetal Engineer 1
World Water day is a day for
people to show support and
appreciate the fresh water (Non
salty water) which is only 1% of
the world water .
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Water facts
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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).
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ABOUT 70 % OF THE EARTH’S SURFACE IS
COVERED WITH WATER
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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 (aquifers)
> Sea ice
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THE TOTAL AMOUNT OF WATER ON THE EARTH
IS ABOUT 326 MILLION CUBIC MILES OF WATER
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70 % OF AN ADULT´S BODY IS WATER.
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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.
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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.
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BY THE TIME A PERSON FEELS THIRSTY, HIS OR HER BODY
HAS LOST OVER 1 % OF ITS TOTAL WATER AMOUNT.
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One in six people have no access to clean water
Access to clean drinking water is a fundamental
right, but it is not a fact in many parts of the
world. Contaminated water causes 1.5 million
deaths a year, 2.5 billion people live without
basic sanitation and one in six people does not
have access to clean water.
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Why should we save water?
Of all the water in the world, only 3% is fresh.
Less than one third of 1% of this fresh water is available for human
use.
The rest is frozen in glaciers or polar ice caps, or is deep within the
earth, beyond our reach.
To put it another way, if 100 liters represents the world's water,
about half a tablespoon of it is fresh water available for our use.
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Water saving tips
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Run home now
to save water,
before it runs
out on you!
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THANK YOU FOR ATTENTION.
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