1796373
Descripción
Test por sterling.guy, actualizado hace más de 1 año
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Creado por sterling.guy
hace más de 9 años
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Pregunta 1
Pregunta
Risk assessment is
Respuesta
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the probability of suffering harm from a hazard that can cause injury, disease, death, economic loss, or damage.
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deciding whether or how to reduce a particular risk to a certain level and at what cost.
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the scientific process of using statistical methods to estimate how much harm a particular hazard can cause to human health or to the environment.
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a mathematical statement about how likely it is that harm will be suffered from a hazard.
Pregunta 2
Pregunta
HIV is considered a/an
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communicable disease.
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all of the choices
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transmissible disease.
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infectious disease.
Pregunta 3
Pregunta
One major problem of infectious diseases is that they
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can be spread by so many pathways: water, food, and body fluids.
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are so incredibly difficult to identify.
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are very difficult to treat.
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are often misdiagnosed and incorrectly treated.
Pregunta 4
Pregunta
Causing the deaths of many children under the age of five by dehydration, this disease is
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HIV.
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diphtheria.
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diarrhea.
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hepatitis.
Pregunta 5
Pregunta
Ethyl alcohol, found in alcoholic beverages, can cause harm or birth defects to a fetus or embryo. Because of its effects, it is called both a toxic chemical and a
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carcinogen.
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teratogen.
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mutagen.
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all of the choices
Pregunta 6
Pregunta
A global strategy to slow the spread of AIDS (according to the World Health Organization) has this priority:
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provide HIV testing for people in high-risk groups.
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reduce the number of new infections below the number of deaths.
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concentrate on those most likely to spread the disease.
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all of the choices
Pregunta 7
Pregunta
Chemicals that specifically harm the human nervous system are called
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teratogens.
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mutagens.
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toxic chemicals.
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neurotoxins.
Pregunta 8
Pregunta
Hormonally active agents (HAAs)
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are hormone mimics that can disrupt or impair reproductive systems and sexual development.
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are beneficial chemicals found in nature that enhance healthy endocrine systems.
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are substances produced by the body that enhance healthy endocrine systems.
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have been identified as ingredients in plastic toys; U.S. researchers are in agreement that these toys are a threat, so all such products are no longer being produced.
Pregunta 9
Pregunta
Toxicology is
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the manufacture of toxic chemicals for pesticides and herbicides.
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the study of the harmful effects of chemicals on humans.
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the study of toxic chemicals and their structure.
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all of the choices
Pregunta 10
Pregunta
Several factors can affect the level of harm caused by a chemical. Which is not one of these?
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biological magnification
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solubility
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state of health
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persistence
Pregunta 11
Pregunta
A person is exposed to a certain substance and feels an immediate reaction. Her reaction is
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clearly dependent on the toxicity of the chemical she was exposed to.
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called a chronic reaction.
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called an acute reaction.
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clearly dependent on the dose she was exposed to.
Pregunta 12
Pregunta
Animal testing is giving way to cheaper, faster, and more humane methods. Which is not one of these?
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cultures skin tests on human volunteers
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testing individual animal cells
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testing chicken membranes
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computer simulations and testing with tissue
Pregunta 13
Pregunta
All natural chemicals are safe.
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- True
- False
Pregunta 14
Pregunta
The greatest risk in life is
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lifestyle choices.
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toxic chemicals.
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running an assembly line on a factory floor.
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poverty.
Pregunta 15
Pregunta
It has been said that most people don't know how to evaluate risks. Which of the following has the highest risk associated with it?
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being killed by a gun
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smoking one pack of cigarettes per day
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motorcycling
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being struck by lightning
Pregunta 16
Pregunta
In order to test the effects of potentially harmful chemicals, experiments often
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use animals in place of people. The results are then applied to humans.
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use people, but use extremely low doses of the chemicals.
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use safe chemicals that have similar properties as those of the potentially harmful chemicals.
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rely solely on computer simulations.
Pregunta 17
Pregunta
Generally, there is no waste in nature.
Respuesta
- True
- False
Pregunta 18
Pregunta
Wastes that threaten human health or the environment because they are poisonous, dangerously chemically reactive, corrosive, or flammable are
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industrial wastes.
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solid wastes.
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hazardous wastes.
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municipal wastes.
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