________ reflects the buyer's inability to predict how many alternate suppliers will be available and what quality of goods and services will be forthcoming when a need arises

A quantitative estimate of how toxic a substance is to human beings or animals at increasing levels of exposure is called a(n) _____ assessment.

a) hazard b) exposure c) dose-response d) chemical safety

Use the model for direct messages when you write a

A) letter of resignation. B) letter of acceptance. C) letter declining a job offer. D) letter of application. E) letter to ask for an extension before making a final decision. c