पर्यावरण रसायन विज्ञान प्रश्न 20
प्रश्न:
DDT एक है -
विकल्प:
A) अजैव-निम्नीकरण प्रदूषक
B) जैव-निम्नीकरण प्रदूषक
C) प्रतिजैविक
D) उपर्युक्त में से कोई नहीं
Show Answer
उत्तर:
सही उत्तर: A
BETA
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