Www.Saveearth.Info Eco Quiz

60 Questions | Total Attempts: 1148

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Www.Saveearth.Info Eco Quiz

Planet Earth needs you! How well do you know the ecological issues covered on this website? It's time to find out if you are an eco-master or an eco-novice. We won't pass on your name, it's just used on the certificate at the end.


Questions and Answers
  • 1. 
    Particles in an aerosol are typically what size in diameter?
    • A. 

      1-1000 nanometers

    • B. 

      1-1000 micrometers

    • C. 

      1-1000 millimeters

    • D. 

      1-1000 centimeters

  • 2. 
    What percentage of aerosols in the atmosphere are generated by human activity?
    • A. 

      90%

    • B. 

      60%

    • C. 

      20%

    • D. 

      10%

  • 3. 
    Aerosols typically spend how many days in the Earth's atmosphere?
    • A. 

      1-3

    • B. 

      4-7

    • C. 

      8-10

    • D. 

      11+

  • 4. 
    Air pollution can be caused by:
    • A. 

      Liquids

    • B. 

      Solids

    • C. 

      Gases

    • D. 

      All of these

  • 5. 
    The chemical symbol for ammonia is NH3?
    • A. 

      True

    • B. 

      False

  • 6. 
    The chemical symbol for carbon monoxide is CO2?
    • A. 

      True

    • B. 

      False

  • 7. 
    What percentage of a modern car can be recycled?
    • A. 

      60%

    • B. 

      65%

    • C. 

      70%

    • D. 

      75%

  • 8. 
    What percentage of the global population live in a polluted air environment?
    • A. 

      Approximately 90%

    • B. 

      Approximately 75%

    • C. 

      Approximately 60%

    • D. 

      Approximately 45%

  • 9. 
    The industrial revolution has been credited with the onset of many of the Earth's current environmental issues. When did this revolution occur?
    • A. 

      1700-1730

    • B. 

      1730-1760

    • C. 

      1760-1820

    • D. 

      1820-1860

  • 10. 
    Outdoor air pollution causes more deaths per annum than indoor air pollution?
    • A. 

      True

    • B. 

      False

  • 11. 
    Pollutant particles have many serious health effects but which sized particles present the most risk to the human body?
    • A. 

      Smaller particles (less than 2.5 micrometers)

    • B. 

      Larger particles (greater than 2.5 micrometers)

  • 12. 
    In 2012, the World Health Organisation (WHO) estimated that most premature deaths from outdoor air pollution were attributable to: 
    • A. 

      Lung cancer

    • B. 

      Heart disease and stroke

    • C. 

      Lower respiratory infections

    • D. 

      Something else

  • 13. 
    Current atmospheric carbon levels have risen since the industrial revolution - back then, carbon levels were around 280 parts per million (ppm). What is the current approximate ppm figure?
    • A. 

      310

    • B. 

      410

    • C. 

      510

    • D. 

      610

  • 14. 
    Since 1970, the total count of organisms on Earth has decreased by what approximate percentage?
    • A. 

      40%

    • B. 

      45%

    • C. 

      50%

    • D. 

      60%

  • 15. 
    The current decline in species and organisms is being likened to a mass extinction event. How many previous mass extinction events do scientists think the Earth has known?
    • A. 

      7

    • B. 

      6

    • C. 

      5

    • D. 

      4

  • 16. 
    What percentage of endangered animals are endangered because of man?
    • A. 

      96%

    • B. 

      97%

    • C. 

      98%

    • D. 

      99%

  • 17. 
    Extinction rates are currently estimated to be around 1,000 to 10,000 times higher than the 'background' extinction rate. How many species per year die out according to background rates?
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      10

  • 18. 
    What percentage of the total number of species that have ever lived on Earth are currently alive?
    • A. 

      10%

    • B. 

      1%

    • C. 

      0.5%

    • D. 

      0.1%

  • 19. 
    The illegal wildlife trade is big business. What is the current estimated annual value of this trade?
    • A. 

      £1 billion

    • B. 

      £10 billion

    • C. 

      £15 billion

    • D. 

      £20 billion

  • 20. 
    Put the following species extinction risk classifications in the correct order starting with least 'at risk' and ending with highest risk status:Endangered (EN) Faces a high risk of extinction in the near future.Near Threatened (NT) May be considered threatened in the near future.Vulnerable (VU) Faces a high risk of endangerment in the medium term.Extinct (EX)Least Concern (LC) No immediate threat to species' survival.Critically Endangered (CR) Faces an extremely high risk of extinction in the immediate future.Extinct in the Wild (EW) Captive individuals survive, but there is no free-living, natural population. 
    • A. 

      LC, NT, VU, EN, CR, EW, EX

    • B. 

      LC, NT, EN, VU, CR, EW, EX

    • C. 

      NT, LC, VU, EN, EW, CR, EX

    • D. 

      NT, LC, VU, EN, CR, EW, EX

  • 21. 
    What percentage of the land's surface is covered by forest?
    • A. 

      15

    • B. 

      20

    • C. 

      25

    • D. 

      30

  • 22. 
    How many acres are being lost per year through deforestation?
    • A. 

      18 million

    • B. 

      20 million

    • C. 

      28 million

    • D. 

      30 million

  • 23. 
    What percentage of forest fires are thought to be started by humans?
    • A. 

      60%

    • B. 

      70%

    • C. 

      80%

    • D. 

      90%

  • 24. 
    What percentage of the Amazon rain forest has been lost since 1970?
    • A. 

      10%

    • B. 

      20%

    • C. 

      30%

    • D. 

      40%

  • 25. 
    Agriculture is the biggest cause of deforestation. What percentage of deforestation is caused by this?
    • A. 

      60%

    • B. 

      70%

    • C. 

      80%

    • D. 

      90%