DDT is a/an:
Correct answer: D. Both options B and C are correct
- A. Biodegradable pollutant
- B. Non-biodegradable pollutant
- C. Insecticide
- D. Both options B and C are correct
Explanation
DDT (Dichlorodiphenyltrichloroethane) is a synthetic chemical that was widely used as an insecticide. It is also a persistent organic pollutant because it is not easily broken down by environmental processes, making it non-biodegradable.
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Atmospheric pollution includes smog, acid rain, greenhouse gases, ozone depletion and the effects of carbon monoxide, sulfur oxides, nitrogen oxides and particulate matter. Water pollution covers sewage, industrial waste, eutrophication and treatment stages, while green chemistry focuses on reducing hazardous substances, waste and energy use through safer, more efficient processes.
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