ACTUAL Exam Questions and
CORRECT Answers
emission trading - CORRECT ANSWER - bringing new parts to less efficient countries to
increase efficiency. it is paid for and then claimed for credit of emission reduction.
biomass - CORRECT ANSWER - replanting forests to offset Carbon sinking. advantages:
increased employment, increased security of energy, increased fossil fuel lifetime, net carbon
dioxide neutral, less pollution.
methane - CORRECT ANSWER - contributes to increased concentration in atmosphere.
capture the methane for use instead of allowing leaks. livestock and landfills contribute the most
leakage.
sequestration - CORRECT ANSWER - locking away CO2 to keep it from entering the
atmosphere. storage of CO2: ocean, minerals, depleted oil and gas wells, brine fields, coal fields,
carbon sinks. power plants: air mixed with nitrogen... we want the oxygen but it's costly to
separate.
sequestration: the ocean - CORRECT ANSWER - need more plankton to fertilize and trap
CO2 as they decay for carbon cycle. this is a carbon sink, there's more carbon in the ocean than
in the atmosphere.
3 processes of ocean sequestration - CORRECT ANSWER - 1. carbon sink through
fertilization 2. inject CO2 into ocean to form hydrates 3. inject CO2 into bottom of ocean to form
CO2 underwater lake.
sequestration: oil fields - CORRECT ANSWER - small holes in oil fields can be filled with
CO2. if the field is still producing the gas aids in extraction of crude through pressure. otherwise
cap the methane leaks.
, sequestration: brine fields - CORRECT ANSWER - saline formations. estimated saline
storage capacity in the US is large and most existing CO2 point sources are within easy access to
a saline injection point. Sleipner West Heimdel gas reservoir of the Norwegian oil company
Statoil is the only commercial CO2 geological sequestration facility.
sequestration: coal - CORRECT ANSWER - large cracks and pores in coal allows
permeability. CO2 is attracted to the coal micropore and doesn't need much space to bounce
around, it wants to associate so we can fill more volume than we could with empty space. kicks
out methane too, sequester coal, collect methane. cost is slightly high and would increase the cost
of electricity.
conservation - CORRECT ANSWER - if we conserve, we use less, if we use less, we pollute
less.
reduction - CORRECT ANSWER - achieved through economic depression, kind weather.
reducing N2O - CORRECT ANSWER - NOx consists of NO N2O and NO2. N2O is the
greenhouse gas of the three. solutions include: NOx removal (acid deposition), mitigation,
prevention are applicable to N2O.
nuclear - CORRECT ANSWER - % of power supplied will decrease. output will remain the
same but % contribution will decrease and decommissioning reactors and plants will result in a
loss of capacity.
smog - CORRECT ANSWER - ground level ozone. it's harmful.
ozone - CORRECT ANSWER - secondary pollutant, aka is formed by released pollutant
interaction. NOx + unburned hydrocarbons or VOC (volatile organic compounds) ---
>SUNLIGHT = O3.
smog requires - CORRECT ANSWER - warm temps, sunlight, VOC, NOx natural and
anthropological emission.