Two Problems Encountered in Human Health Risk Assessment Are ________

Multiple Choice

Two problems encountered in human health risk assessment are ________ and ________.

A) use of chemical mixtures;lack of knowledge about synergistic effects
B) lack of funding for federal mandates;lack of public support
C) extrapolation of data to low doses;extrapolation of data from non-human species to humans
D) lack of planning;the involvement of politics