In risk characterization, a reference dose (RfD) of 0.007 means that
a. 0.7 percent of people are exposed to the environmental hazard
b. exposure to 0.007 milligrams of a pollutant per body weight per day over a lifetime should cause no harm
c. there is a 0.007 percent probability that the pollutant causes no harm
d. 7 out of 1 million people are affected by the pollutant
b. exposure to 0.007 milligrams of a pollutant per body weight per day over a lifetime should cause no harm
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For a seller who is a price taker, marginal revenue is always
A) less than marginal cost. B) more than marginal cost. C) the same as marginal cost. D) less than price. E) the same as price.
A local restaurant has prepared a new recipe for its lunch menu. Which form of nonprice competition is this?
(A) Physical characteristics (B) Location (C) Image (D) Service level