E&m Mec Exam #2

105 Questions | Total Attempts: 34

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Atmosphere Quizzes & Trivia

Questions and Answers
  • 1. 
    Which type of uv radiation is needed to produce vitamin D?
    • A. 

      UvA

    • B. 

      UvB

    • C. 

      UvC

  • 2. 
    The wavelength of uvA radiation is...
    • A. 

      150-250 nm

    • B. 

      320-380 nm

    • C. 

      400-700 nm

    • D. 

      800-1000 nm

  • 3. 
    Which type of uv radiation is responsible for the most DNA damage at the earth's surface?
    • A. 

      UvA

    • B. 

      UvB

    • C. 

      UvC

  • 4. 
    The wavelength of uvC radiation is...
    • A. 

      150-240 nm

    • B. 

      300-350 nm

    • C. 

      320-380 nm

    • D. 

      250-290 nm

  • 5. 
    Which uv radiation is mostly filtered by the atmosphere?
    • A. 

      UvA

    • B. 

      UvB

    • C. 

      UvC

  • 6. 
    Which of the following on the electromagnetic spectrum has the shortest wavelength?
    • A. 

      Microwaves

    • B. 

      AM radio

    • C. 

      Gamma rays

    • D. 

      X-rays

  • 7. 
    Which of the following on the spectrum has the highest wavelength?
    • A. 

      Microwaves

    • B. 

      AM radio

    • C. 

      Gamma rays

    • D. 

      X-rays

  • 8. 
    Which color has the highest frequency on the electromagnetic spectrum?
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Violet

    • D. 

      Green

  • 9. 
    The _______ is the unit of Frequency.
    • A. 

      Meter

    • B. 

      Hertz

    • C. 

      Second

    • D. 

      Watt

  • 10. 
    The ___________ is the unit of wavelength.
    • A. 

      Meter

    • B. 

      Hertz

    • C. 

      Second

    • D. 

      Watt

  • 11. 
    Visible light has wavelengths in the range...
    • A. 

      250-380 nm

    • B. 

      400-600 nm

    • C. 

      700-1250 nm

    • D. 

      Neither A, B, or C

  • 12. 
    Increased radiation in the range 288-290 nm may...
    • A. 

      Destroy corneal cells

    • B. 

      Scar the conjunctivia

    • C. 

      Cause cataracts

    • D. 

      All of the above

  • 13. 
    Which of the following is not a layer on the earth's atmosphere?
    • A. 

      Stratosphere

    • B. 

      Troposphere

    • C. 

      Mesosphere

    • D. 

      Biosphere

  • 14. 
    Which is the farthest layer from the earth's surface?
    • A. 

      Troposphere

    • B. 

      Mesosphere

    • C. 

      Exosphere

    • D. 

      Stratosphere

  • 15. 
    Which is the most turbulent region in the earth's atmosphere?
    • A. 

      Troposphere

    • B. 

      Mesosphere

    • C. 

      Exosphere

    • D. 

      Stratosphere

  • 16. 
    99% of the uv radiation that reaches the earth's surface is uvB.
    • A. 

      True

    • B. 

      False

  • 17. 
    How many miles above the earth's surface is the ozone layer?
    • A. 

      12 to 25 miles

    • B. 

      18 to 30 miles

    • C. 

      25 to 40 miles

    • D. 

      30 to 50 miles

  • 18. 
    Which atom destroys the ozone most?
    • A. 

      Carbon

    • B. 

      Chlorine

    • C. 

      Copper

    • D. 

      Calcium

  • 19. 
    Which atom destroys the ozone least?
    • A. 

      Bromine

    • B. 

      Chlorine

    • C. 

      Nitric Oxide

    • D. 

      Hydrogen

  • 20. 
    The ozone layer was formed about...
    • A. 

      10 billion years ago

    • B. 

      1 billion years ago

    • C. 

      100 million years ago

    • D. 

      10 million years ago

  • 21. 
    CFC's were developed in the early ______.
    • A. 

      1920's

    • B. 

      1930's

    • C. 

      1940's

    • D. 

      2000's

  • 22. 
    What does Y represents in the chemical reaction below? O3 + Y --> O2 + O
    • A. 

      UVA

    • B. 

      UVB

    • C. 

      UVC

    • D. 

      None of the above

  • 23. 
    Which of the following is not a halogen atom?
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Iodine

    • D. 

      Hydrogen

  • 24. 
    CFC's (chloro-fluoro-carbons) were used in...
    • A. 

      Plastics

    • B. 

      Foams

    • C. 

      Anti-oxidants

    • D. 

      All of the preceding

  • 25. 
    Which of the following is not a greenhouse gas?
    • A. 

      Carbon Dioxide

    • B. 

      Methane

    • C. 

      Ozone

    • D. 

      Oxygen