Which of the following is NOT a toxic substances present in e-waste?

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KollegeApply · Accepted Answer

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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