The term encapsulation refers to the:
a. process of sealing a landfill with three to four feet of topsoil
b. way in which insulation is applied to pipes and wiring systems
c. method of sealing disintergrating asbestos
d. way in which lead-based paint particles become airborne
Answer: c. method of sealing disintergrating asbestos
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The sea is salty because
A. the mantle is salty. B. rainwater is salty. C. marine organisms manufacture salts. D. it contains salts from Earth's crust that have been dumped into the ocean and dissolved.
When a windmill turns to generate electricity, the amount of kinetic energy input in the process ________
A) is greater than the amount of electrical energy produced B) is less than the amount of electrical energy produced C) is unrelated to the amount of electrical energy produced D) equals the amount of electrical energy produced
Exponential growth followed by a steady decrease in population growth until the population size stabilizes is typical of ____.
A. logistic growth B. environmental resistance C. exponential growth D. carrying capacity E. biotic potential
Earth's biodiversity remains a reservoir for ________
A) habitat extinction and species destruction B) pests and disease C) water and waste production by humans D) oil and coal E) foods and medicines