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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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The residence time of a pollutant in the atmosphere is best defined as:
  1. The concentration of pollutant.
  2. The amount of time the pollutant stays in the air.
  3. The circulation of the pollutant to different regions.
  4. The time it takes for a pollutant to be produced.
  5. The ability of a pollutant to attach to an object.
Explanation
Answer: B - Residence time is the amount of time a pollutant remains in the air before being captured or otherwise sequestered. This is an important physical measure that is evaluated for air quality and pollutants released by factories.
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