Reduction of Air Pollutants (College Board AP® Environmental Science): Exam Questions

5 mins5 questions
11 mark

Which of the following best describes the purpose of a vapor recovery nozzle?

  • The nozzle captures VOCs.

  • The nozzle captures vapors and expels them into the atmosphere

  • The nozzle is an air pollution control device on a gasoline pump

  • The nozzle prevents benzene from escaping from an underground storage tank

     

Did this page help you?

21 mark

Which of the following regulations is specifically aimed at reducing emissions of ozone-depleting substances?

  • Kyoto Protocol  

  • The Paris Agreement  

  • Montreal Protocol  

  • European Union's Air Pollution Thematic Strategy  

Did this page help you?

31 mark

How does a catalytic converter reduce harmful emissions in vehicles?

  • By increasing the combustion efficiency of the engine  

  • By converting toxic gases into less harmful compounds through chemical reactions  

  • By filtering out particles from the exhaust gases  

  • By absorbing excess heat from the exhaust gases  

Did this page help you?

41 mark

Which of the following describes the function of a wet scrubber?

  • It uses dry reagents to neutralise exhaust gases  

  • It filters particulates from exhaust gases using water  

  • It uses calcium oxide to react with sulfur dioxide  

  • It converts gaseous pollutants into solid waste  

Did this page help you?

51 mark

Which of the following best describes the process of flue gas desulfurization (FGD)?

  • Sulfur dioxide reacts with calcium sulfate to form a clean gas  

  • Calcium oxide and calcium carbonate react with sulfur dioxide to form calcium sulfate  

  • Flue gases are directly emitted without any treatment  

  • Sulfur dioxide is absorbed by activated carbon in the scrubbing chamber  

Did this page help you?