CH 16 Mb: Question Preview (ID: 5637)


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sources of pollution include
a) propellants, hydrocarbons, and biocides in the atmsophere b) agricultural and industrial run off c) maritime accidents or ships dumping bilge water,ballast and garbage d) all of the answers are correct
about 44%
a) propellants, hydrocarbons, and biocides in the atmsophere b) agricultural and industrial run off c) maritime accidents or ships dumping bilge water,ballast and garbage d) glacial melting releasing paleopetroleum wasters
heavy metals include
a) lead b) mercury c) cadmium d) all of the answers are correct
heavy metals affect organisms by
a) interfering with cellular metabolism and accumulating in tissues b) giving them a foul taste c) increasing reproductive behavior d) decreasing reproductive behavior
heavy metal risks to humans include
a) brain damage b) behavioral disorders c) birth defects d) all of the answers are correct
synthetic organic chemicals can persist in the marine environment because
a) they naturally form there b) they bind irreversibly with water c) bacteria convert them into stable forms d) bacteria and other processed do not break them down
synthetic organic chemicals concentrate into dangerous levels from very low concentrations
a) due to evaporation in tide pools b) through bio magnification at each trophic level c) by attracting each other as charged ions d) all of the answers are correct
the major sources of oil pollution in the sea include
a) petroleum industry activities and runoff from parking lots and streets b) runoff from parking lots and streets c) incomplete combustion in automobiles d) all of the above
oil affects the environment by
a) changing organisms behaviors b) contaminating food fish c) sinking to the bottom d) all of the above
Refind oil is more of a hazard than crude oil because the refinement process adds toxic chemicals and concentrates biologically active compounds
a) true b) false c) d)
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