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        | is contaminated with pollutants such as sulfur dioxide and nitrogen oxide gases. |  | 
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        | To upset the development movement, or organization of someone or some thing. |  | 
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        | formed from a plant or animal remains. Coal, gas, and oil are examples. |  | 
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        | Anything that spreads harmful or unpleasent substances into the air, water, or ground. |  | 
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        | Term 
 | Definition 
 
        | Condition that exists when harmful materials have entered the this and made it hamful to organisms |  | 
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