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| On the other hand there are also colloids that can contribute pollution.Which harms to our health and environment. | |
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| Uhmmm,excuse me sir,what is CFC by the way? | |
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| For examples the CFC's from aerosols taht pollutes the air. | |
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| Oh!,I'm sorry CFC stands for Chloro Fluoro Carbon.This is a gas that is made up of 3 elements chlorine,flourne and carbon. | |
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