Carcinogens may be difficult to identify because ________
A) there is no way to measure the carcinogenic potential of a substance
B) they are the least common toxicants
C) there is a long lag time between exposure to the agent and disease
D) they are rare in nature
E) most are invisible
C
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It is recommended that data sets used for validating a model are different from those for developing the model.
Answer the following statement true (T) or false (F)
First define particulates. Then discuss their sources, how they are removed from the atmosphere, and the effects particulates have on health
What will be an ideal response?
A comet's tail ________.
A. points toward the nearest planet as a result of its gravity B. is a vapor trail behind a comet that points in the direction from which the comet came C. lines up with the solar wind moving outward from the Sun D. is composed of smoke from the burning comet E. always points toward the Sun
Explain flood probability estimates
What will be an ideal response?