5 Written questions
5 Matching questions
- effluent sewerage
- flex-fuel vehicle
- photovoltaic cells
- critical mass
- fuel cell
- a the minimum mass of a fissionable isotope that provides the number of neutrons needed to sustain a chain reaction
- b can burn variable mixtures of ethanol and gasoline
- c a low-cost alternative sewage treatment for cities in poor countries that combines some features of septic systems and centralized municipal teatment systems
- d Cells, usually made of specially-treated silicon, that transfer solar energy from the sun to electrical energy
- e produces electricity chemically by combining hydrogen fuel with oxygen from air
5 Multiple choice questions
- A mixture of hydrocarbon gases that occur with petroleum deposits
- Products of secondary atmospheric reactions driven by solar energy; causes smog.
- small generator to provide economical power for a single home that is near a perennial stream or river
- A diesel-equivalent, processed fuel derived from biological sources (such as vegetable oils), that can be used in unmodified diesel-engine vehicles.
- the process by which water changes from liquid form to an atmospheric gas
5 True/False questions
heat island → Phenomenon describing urban and suburban tempuratures that are 2 to 10 degrees F(1 to 6 degrees C)hotter than nearby rural areas.
secondary treatment → Treating wastewater biologically, by using microorganisms to decompose the suspended organic material; occurs after primary treatment
nitrogen oxides → (source: auto exhaust) (effects: acidification of lakes, respiratory irritation, leads to smog & ozone) (Equation for acid formation: NO + O2 = NO2 + H2O = HNO3) (Reduction: catalytic converter)
fuel assembly → a population explosion of certain marine dinoflagellates that causes the water to turn a red or red-brown color and to contain poisonous alkaloids produced by the dinoflagellates
nuclear power → a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy