Which of the following best matches the description?A serious effect that occurs after prolonged exposure to small doses of a toxin.
A. acute toxicity
B. Superfund
C. hazardous wastes
D. RCRA
E. National Priority List
F. synergism
G. corrosiveness
H. toxicity
I. LD50
J. CERCLA
K. ignitability
L. threshold levels
M. reactivity
N. waste minimization
O. chronic toxicity
Answer: O
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