1. Physical characteristics (Physical Characteristics), including solids, temperature, color and odor.- solid (Solid) are substances in water remaining after the water or when volatile น้ำออกจน.Temperature (Temperature) temperature variations of spring tide up from several factors such as the temperature of the air volume and depth. The temperature of the water will affect the chemical reactions and biological arising in the water.- color (Color) the color of water is 2 types is the color appearance, color is caused by various suspensions and real color is the color resulting from a homogeneous mixture solution with water. Get rid of difficult. This kind of color is caused by the degradation of the organic matter.- it (Oder) the smell of spring tide from organic matter is mainly. May be caused by some inorganic substances.
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