Khmer Version bellow:
Water and Sanitation
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Earth is an useful natural resource warehouse. The resource we take from earth for use is called “natural resource”. Those natural resources include soil, water, air, plants, animals, mineral which are useful for the living of humans. Of those natural resources, some after use are not renewable or they are renewable after millions of years, such as mineral, oil, coal… However, some natural resources after use are renewable, such as plants, air, soil, and water. Water is the renewable natural resource that moves constantly in the water cycle. Water is the earth’s wealth and on earth water covers three fourth of the earth surface. There are two types of water: fresh water and salty water. About 2.74% of fresh water exists in polar ice and other exists in too deep ground which cannot be drawn out for use. Therefore, there is one small portion of fresh water that can supply the need of humans around the world. Moreover, humans around the world also need health that is physical and mental health that makes their life beautiful. This happiness is the result of the direct act of humans, namely water and food and clothes consumption and keeping the body safe, in particular the prevention of other diseases. Therefore, humans living on earth need specifically water and personal hygiene.