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Question
Which hazardous pollutant is specifically released from discarded LED (Light-Emitting Diodes)?
फेकी गई LED (लाइट-एमिटिंग डायोड) से खास तौर पर कौन सा खतरनाक प्रदूषक निकलता है?
A.
 Mercury
B.
Arsenic
C.
Silver
D.
Iron
Answer ( Option B)

Arsenic

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