Quiz 8 Ch 19,18,9 – Flashcards
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Toxicologists refer to the total amount of a chemical present in the tissues of an organism as ________.
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Body Burden
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What pesticide has been primarily used to control mosquito populations?
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DDT
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What is considered a physical human hazard?
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Earthquakes
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Toxicology is the study of ________.
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effect of toxicants on the human body
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Bisphenol A (BPA) is most often found in ________.
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Plastic
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What diseases is transmitted by an insect vector?
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Malaria
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The three leading causes of death in the United States today are cardiovascular disease, chronic obstructive pulmonary disease and:
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Cancer
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Pollutants that interfere with the normal functioning of hormones are called:
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Endocrine disruptor
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Acute toxicity:
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produces an effect within a short period of a single exposure.
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Mercury has been linked to ______________ in children.
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Neurological impairment
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Sewage is degraded by the process of:
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Cellular respiration
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Chlorofluorocarbons such as CFC-12 are released into the atmosphere by:
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leaking air conditioners and old refrigerators
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Which of the following describes the pH of natural rainfall?
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Slightly acidic
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Air pollution is a greater health threat to children than adults because:
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all of the above....smaller lungs, breathe in more air per pound
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The stratospheric chemical that prevents much of the solar ultraviolet radiation from penetrating to Earth's surface is:
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ozone
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A benefit of sanitary landfills over "open dumps" is that:
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all of the above
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When considering using graywater, you might use the water for ________.
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flushing toilets
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Secondary sewage treatment is designed primarily to ________.
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breakdown organic material through decomposition
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The greenhouse gas produced from most landfills is ________.
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methane
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Which of the following is not considered wastewater?
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groundwater
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Bauxite mining to produce aluminum contributes to ________.
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deforestation
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Which of the following is the chemical formula for ozone?
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O3
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Where was ozone thinning first noticed?
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Antartica
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Sulfur dioxide and nitrogen oxides react with water to produce:
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sulfuric acid and nitric acid
