Evaluate: (6-1-8-'5+(2-1-3-')-1
If 31-1 = 9 and 49 +2 = 64, find the value of
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Disadvantages of Plastics
Natural decomposition of plastic can last from 400-1000 years and few types of plastics are non-degradable as well.
Plastic materials clog waterways, oceans, seas, lakes etc. ...
Many animals eat plastic materials and die. ...
Plastic is widely used in packaging.
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