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Question
Which of the following is NOT a toxic substances present in e-waste?
Options
Cadmium
Lead
Mercury
Methane
MCQ
Solution
Methane
Explanation:
E-waste is valuable as a source of secondary raw material but is hazardous if treated and discarded improperly. Uncontrolled burning and disposal of e-waste cause environmental problems. It is of concern largely due to the toxicity of some substances, such as lead, mercury, cadmium, etc.
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