WATER

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Water

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By: River2010 (25 month(s) ago)

great! i like it. thanks

By: vincent2511 (25 month(s) ago)

Thank you for your comments

 

Presentation Transcript

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• Of all social and natural crisis we humans face, the water crisis is the one that lies at the heart of our survival and that of our planet Earth. Koichiro Matsuura, Director-General UNESCO

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Although 70% of the earth’s surface is covered with water, less than 2% of it is potable (safe to consume). Water makes up 75% of our body and is responsible for every vital function of our life process such as breathing, blood mobilization, muscle control,nervous system functions,digestion, excretion, vision, smell etc. When we were inside the womb, we were immersed in water full of minerals to protect, insulate and nurture. Water is known as “universal solvent” so it attracts and dissolves many contaminants and impurities that might not be apparent to the eyes, nose and mouth. Approximately 80% of human diseases are water borne. WATER FACTS LIFE BEGINS WITH WATER : ENDS WITHOUT IT

Water Chemical Properties : 

One atom of oxygen Two atoms of hydrogen Water Chemical Properties

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Uniqueness of water Liquid Solid Gas

Did you know that … : 

Did you know that … there is the same amount of water in the world now as there was hundreds of millions of years ago?

So ….. : 

So ….. Where does it come from? And where does it go?

Evaporation : 

Evaporation Water in the sea, lakes, rivers, streams, ponds and puddles is heated by the sun.

Condensation : 

Condensation As the water vapour rises into the air, it gradually cools and condenses to form minute droplets of water. These billions of tiny droplets gather together to form clouds.

Rain : 

Rain When these droplets become too heavy, they fall as rain.

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Back to the sea evaporation condensation

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Water usage Agriculture 70% Industries 20% House hold 10%

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Water Pollution 3 Major categories 1.PHYSICAL POLLUTANTS 3.CHEMICAL POLLUTANTS 2.MICROBIOLOGICAL POLLUTANTS

PHYSICAL POLLUTANTS : 

PHYSICAL POLLUTANTS DUST UNWANTED PARTICLES UNDISSOLVED MINERALS DECAYING LEAVES BUGS

MICROBIOLOGICAL POLLUTANTS : 

MICROBIOLOGICAL POLLUTANTS BACTERIA VIRUSES SPORES CYSTS

CHEMICAL POLLUTANTS : 

CHEMICAL POLLUTANTS PESTICIDES, FUNGICIDES, HERBICIDES, CHEMICAL WASTE, DOMESTIC WASTE, ACID RAIN, LEAD POISONING, RUST, ALUMINUM COMPOUNDS, CHLORINE, ARSENIC ETC.

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MAJOR DISEASE CAUSING GERMS FOUND IN WATER TYPHOID CHOLERA JAUNDICE POLIO IS THIS SOMETHING WE SHOULD IGNORE?

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To have a healthy nature, we have to reduce the sea level and transfer the water to land as rain and make the poles with more ice. But how ? I C e R A I N

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WE CAN ACHIVE THIS TWO BY DOING ONE THING GROWING TREES

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The best friend on earth of man is the tree. When we use the tree respectfully and economically, we have one of the greatest resources of the earth.“ - Frank Lloyd Wright

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Rain Water Harvesting– Advantages 1.Provides self-sufficiency to water supply 2.Reduces the cost for pumping of ground water 3.Provides high quality water, soft and low in minerals 4.Improves the quality of ground water through dilution when recharged 5.Reduces soil erosion & flooding in urban areas 6.The rooftop rain water harvesting is less expensive & easy to construct, operate and maintain 7. In desert, RWH only relief 8. In saline or coastal areas & Islands, rain water provides good quality water

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Source: The Hindu dt 30-01-07

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Dear friends,Water is essential for life. Yet many millions of people around the world face water shortages. Many millions of children die every year from water-borne diseases. And drought regularly afflicts some of the world’s poorest countries. The world needs to respond much better. We need to increase water efficiency, especially in agriculture. We need to free women and girls from the daily chore of hauling water, often over great distances. We must involve them in decision-making on water management. We need to make sanitation a priority. This is where progress is lagging most. And we must show that water resources need not be a source of conflict. Instead, they can be a catalyst for cooperation. Significant gains have been made. But a major effort is still required. That is why this year marks the beginning of the “Water for Life” Decade. Our goal is to meet the internationally agreed targets for water and sanitation by 2015, and to build the foundation for further progress in the years beyond. This is an urgent matter of human development, and human dignity. Together, we can provide safe, clean water to all the world’s people. The world’s water resources are our lifeline for survival, and for sustainable development in the 21st century. Together, we must manage them better. Kofi A. Annan The 'Water for Life' Decade was launched on 22nd March 2005 by the United Nations Secretary-General Kofi Annan with the following video message:

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If you save trees Trees will save you