01:119:160 Lecture 9: BSEI Water Pollution
1 Nov 2016
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Document Summary
Water is a molecule consisting of two atoms of h and one atom of o (h2o) Liquid water consists of aggregates of water molecules bonded together since their electrical charges attract the opposite charge - angle between the bonds is 105 degrees, boiling point of water is 212 degrees. Fahrenheit, freezing point is 0 degree centigrade or 32 degrees fahrenheit. Life itself arose in the water (believed) Water evaporates from the ocean, rivers, and land. Snow and rain falls into the ocean, rivers, and onto land. If any substituent becomes polluted, the whole cycle becomes polluted. About 90% of the precipitation falling onto the land is from the ocean and 10% is derived from the land. Foreign substances in the water can be classified in terms of the size of the particles. Range in quality from potable (drinkable) to poisonous and also the water can range from non- salty to extremely salty.
