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HOTmike HOTmike
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6 years ago
Some current and most older electric discharge lamps present special disposal problems because they contain:

a.   small amounts of mercury.

b.   large amounts of lead.

c.   trace amounts of radioactive elements.

d.   all of the above.
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Hospitality Facilities Management and Design

Hospitality Facilities Management and Design


Edition: 4th
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EleglinEleglin
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6 years ago
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HOTmike Author
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6 years ago
Thanks Elgin
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6 years ago
My pleasure
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