Outline the four steps of risk assessment used by the EPA
What will be an ideal response?
The four steps are (1) hazard assessment, (2) dose-response assessment, (3) exposure assessment, and (4) risk characterization. Dose-response assessment is "to analyze the relationship between the concentrations of chemicals in the test (the dose) and both the incidence and severity of the response." Exposure assessment "involves identifying human groups already exposed to the chemical, learning how their exposure came about, and calculating the doses and length of time of their exposure. The final step, risk characterization, is to pull together all the information gathered in the first three steps in order to determine the risk and its accompanying uncertainties.
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Volcanic peaks on the deep-ocean floor with conical tops are called ________
A) seamounts B) tablemounts C) submarine canyons D) oceanic trenches E) oceanic ridges
Large plates of ice in the ocean attached to land along at least one side are known as ice plateaus
Indicate whether the statement is true or false
According to the concept of ____________________, an ancestral species changes gradually and continuously and grades imperceptibly into a descent species
Fill in the blank(s) with correct word
New Russians is a term describing a group of:
A) wealthy B) immigrants C) communists D) children