8 DISEMBER 2008 - Waste Management [Part 1]
By definitions, waste is an unwanted or undesired material or substance. It is also refered to as rubbish, trash, garbage, or junk depending upon the type of material and the regional terminology. In living organisms, waste relates to unwanted substances or toxins that are expelled from them.(wikipedia-waste-1st may 2008) READ MORE >
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