PSC Question Bank a) global warming
b) melting of glaciers
c) ozone depletion
d) heavy metal pollutants
b) melting of glaciers
c) ozone depletion
d) heavy metal pollutants
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MCQ TOPICS
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The metals are common pollutants inadvertently released during the manufacture of various industrial products, from steel to pharmaceuticals. Microorganisms cannot destroy metals, but they can alter their reactivity and mobility. Schemes for using microorganisms to mobilize metals from one location and scavenge the metal from another location have been applied to mining operations. Microbes produce acids that can leach metals, like copper, from low-grade ores. This same approach should be feasible for bioremediation purposes, but it has not been proven. Microorganisms can also demobilize metals by transforming them to a form that precipitates.