Why might disposing of a lead-acid battery, nickel-cadmium battery, or mercury battery in a landfill be a bad thing?
A. Cadmium, mercury, and lead are all very reactive and generate highly unstable compounds.
B. Cadmium, mercury, and lead are all radioactive and release radiation.
C. Cadmium, mercury, and lead are all toxic metals and could leak out of the landfill.
D. all of the above
E. none of the above
Answer: C
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