Explain how response to hazards can vary based upon individual differences and type of exposure. Give examples, where appropriate
What will be an ideal response?
Different individuals may be more sensitive to hazards. Differences can be genetically based, can result from varying abilities of the body's organs to detoxify substances, or can be due to a person's overall condition. People in poor health are often more vulnerable to hazards. Sensitivity can also vary with sex, age, and weight. Fetuses, infants, and young children tend to be more sensitive to toxicants. Acute exposure, which is high exposure for short time periods, differs from chronic exposure, which is lower exposure over long time periods. Acute exposures are easier to recognize because they often stem from discrete events such as accidental ingestion, oil or chemical spills, or a nuclear accident. Chronic exposure is more common and more difficult to detect and diagnose. Chronic exposure often affects organs gradually, as happens when smoking causes lung cancer or when alcohol abuse induces liver or kidney damage. Pesticide residues on food or low levels of arsenic in drinking water also pose chronic risk.
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The concepts of velocity and acceleration are
A. very different from each other. B. different names for the same idea. C. concepts developed by Aristotle. D. none of the above
Describe the general relationship between the ELR and atmospheric stability. For which ELR values will the atmosphere always be stable? Unstable?
On the graphs provided in Figure 13.2, plot the following data, using colored pencils to distinguish the different rates. Begin with a surface temperature of 25°C noted on all three graphs labeled a, b, and c. Please use these colors: ELR = green pencil; DAR = red pencil; MAR = blue pencil. a) Plot an environmental lapse rate of 11 C° per 1000 m, DAR of 10 C° per 1000 m, MAR of 6 C° per 1000 m. This graph is completed for you. b) Plot an environmental lapse rate of 4.5 C° per 1000 m, DAR of 10 C° per 1000 m, MAR of 6 C° per 1000 m. c) Plot an environmental lapse rate of 8 C° per 1000 m, DAR of 10 C° per 1000 m, MAR of 6 C° per 1000 m.
Earth receives energy from the Sun in this way
conduction convection radiation all of these
Sand dunes are found along coasts in which the sand is transported ________.
A. from inland areas toward the sea B. from the beach toward the sea, from the beach toward inland areas, and from inland areas toward the sea C. from the beach toward inland areas and from inland areas toward the sea D. from the beach toward the sea E. from the beach toward inland areas