Unit 4 Test: Environmental Concerns

Which river was so badly polluted that it caught fire several times?

• Thames

• Volga

• Nile

• Cuyahoga

What was the impact of the British Clean Air Act of 1956?

• Provided money for air-pollution research

• Set clean-air standards

• Limited the burning of soft coal

• Created agencies to monitor air pollution

What became a significant problem during the Industrial Revolution?

• destruction of stratospheric ozone

• outdoor air pollution

• indoor air pollution

• loss of biodiversity

Which change was a consequence of building the Inco Superstack?

• an increase in sulfur dioxide emissions in the Sudbury area

• a decrease in sulfur dioxide emissions in the Sudbury area

• a decrease in the production of nickel and copper

• an increase in the production of nickel and copper

Which policy has been a cost-effective way to reduce sulfur dioxide emisisons?

• banning the emissions of sulfur dioxide entirely

• burning high-sulfur coal

• enacting cap-and-trade legislation

• implementing scrubber technology on all power plants

What is a disadvantage of burning solid waste?

• electricity is generated

• the volume of solid waste is reduced

• the mass of solid waste is reduced

• air pollution is created

Which factor poses the greatest threat to fish populations in the Galapagos Islands?

• overfishing

• tourism

• hurricanes

• overpopulation

Which type of diversity refers to the amount of variation in the gene pool of a species?

• genus diversity

• species diversity

• genetic diversity

• ecological diversity

How do scientists predict future trends in climate?

• They gather at conferences and vote on the most widely held views.

• They poll policy makers on planned solutions to climate change.

• They drill ice cores into the Antarctic ice sheet.

• They use computer models.

What economic method is often used to guide policy makers in making pollution regulations?

• supply-demand analysis

• determining point of diminishing returns

• cost-benefit analysis