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Water is the most familiar and abundant liquid on earth. In solid liquid form it covers about 70% of the earth’s surface. The unique properties of water make life possible on Earth. Water characteristics, such as adhesion and cohesion, surface tension, and high heat capacity affects the organism of the Earth. The hydrogen bonds between water molecules results in two important properties : adhesion-an attraction between dissimilar substances and cohesion - and the attraction between similar …

…our body. Also the vaporization quality of water is significant to animals that rely on the evaporation of water from their body surfaces as a unique cooling device. In addition, pure water freezes at 0 degrees Celsius but is most dense at 4 degrees Celsius. This quality allows for the survival of aquatic animals. Furthermore, the remarkable chemical and physical properties of water, primarily resulting from hydrogen bonding, have major consequences for all living organisms. ------------------------------------------------------------------------ **Bibliography**