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What are POPs?

POPs are 1 _____
organic pollutants. An example of a POP is 2 ______.
1. persistent
1.short-lived
1.permanent
2. sulfur dioxide
2.nitrogen oxide
2.DDT​

User Pasosta
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1 Answer

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1.) persistent 2.) nitrogen
(I think nitrogen fits I’m not sure...)
User SurenNihalani
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