countering a flawed argument that dismisses a possible solution to a problem
reconciling contradictory points of view about the nature of a problem
identifying the strengths of possible solutions to a problem
discussing a problem and arguing in favor of one solution to it
outlining a plan of action to solve a problem and discussing the obstacles blocking that plan
1.2 According to the passage, incomplete combustion is more likely to occur with gasoline than with an alternative fuel because
the combustion of gasoline releases photochemically active hydrocarbons
the combustion of gasoline involves an intricate series of reactions
gasoline molecules have a simple molecular structure
gasoline is composed of small molecules.
gasoline is a carbon-based fuel
1.3 The passage suggests which of the following about air pollution?
Further attempts to reduce emissions from gasoline-fueled vehicles will not help lower urban air-pollution levels.
Attempts to reduce the pollutants that an individual gasoline-fueled vehicle emits have been largely unsuccessful.
Few serious attempts have been made to reduce the amount of pollutants emitted by gasoline-fueled vehicles.
Pollutants emitted by gasoline-fueled vehicles are not the most critical source of urban air pollution.
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