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  • Question
  • Which of the following is a secondary air pollutant?


  • Options
  • A. Acid rain
  • B. SO2
  • C. CO2
  • D. Dust particles

  • Correct Answer
  • Acid rain 

    Explanation

    Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

     

    Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

     

    Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

     

    Hence, Acidrain is a secondary air pollutant.

     

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    Basic General Knowledge problems


    Search Results


    • 1. The average salinity of seawater is

    • Options
    • A. 35%
    • B. 3.5%
    • C. 3%
    • D. 2.5%
    • Discuss
    • 2. Where was India's first F1 circuit built?

    • Options
    • A. Jaipur
    • B. Coimbatore
    • C. Noida
    • D. Chennai
    • Discuss
    • 3. What is another name for the governor of a state?

    • Options
    • A. Chief Executive
    • B. Attorney General
    • C. Secretary of the State
    • D. Vice Pesident
    • Discuss
    • 4. According to experts what percentage of trash is recyclable?

    • Options
    • A. 16%
    • B. 36%
    • C. 72%
    • D. 90%
    • Discuss
    • 5. Which elements are most abundant in living organisms?

    • Options
    • A. oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
    • B. carbon, potassium, iron, magnesium, hydrogen, and nitrogen
    • C. hydrogen, carbon, calcium, potassium, oxygen, and phosphorus
    • D. oxygen, calcium, phosphorus, sodium, hydrogen, and carbon
    • Discuss
    • 6. Instrument used to measure oxygen?

    • Options
    • A. Aminometer
    • B. Respirometer
    • C. Thaleometer
    • D. Galiometer
    • Discuss
    • 7. Which of the following is not a monotheistic religion?

    • Options
    • A. Hinduism
    • B. Christianity
    • C. Islam
    • D. Sikhism
    • Discuss
    • 8. In which layer is the temperature the lowest?

    • Options
    • A. Troposphere
    • B. Ionosphere
    • C. Mesosphere
    • D. Stratosphere
    • Discuss
    • 9. FIFA 2018 World Cup won by

    • Options
    • A. Croatia
    • B. Brazil
    • C. Argentina
    • D. France
    • Discuss
    • 10. Who is the richest person in the world 2018?

    • Options
    • A. Jeff Bezos
    • B. Bill Gates
    • C. Warren Buffets
    • D. Mark Zuckerberg
    • Discuss


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