Inglés, pregunta formulada por eddy60, hace 1 año

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Contestado por brandondavidbeoustpv
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1. What is environmental pollution? 2. In what year did the collection of data related to the effects of some toxic compounds on humans and other organisms begin? 3. What will depend on the type of toxic compound found on the planet? 4. Why can contact with toxic compounds occur? 5. What are hydrocarbons? 

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