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General Knowledge :: Environmental Science

  1. A river with high BOD value is

  2. A.

     highly polluted

    B.

     highly clean

    C.

     highly productive

    D.

     none of these


  3. The name given to a liquid drop of dew that freezes when the air temperature drops below freezing is:

  4. A.

     Frost

    B.

     Black frost

    C.

     Hoarfrost

    D.

     White frost

    E.

     Frozen dew


  5. "Ozone Hole" is a _____________

  6. A.

     Hole in the atmosphere

    B.

     Destruction of ozone layer

    C.

     Hole in the hydrosphere

    D.

     Hole in the troposphere


  7. The maintenance of relatively constant internal environment is called

  8. A.

     Homeostasis

    B.

     Exotherms

    C.

     Homeobox

    D.

     Endotherms


  9. The only ape found in India

  10. A.

     Gorilla

    B.

     Chimpanzee

    C.

     Hoolock gibbon

    D.

     Oranguttan


  11. The indoor pollutant radon which is a radioactive gas causes

  12. A.

     lung cancer

    B.

     anemia

    C.

     hormone disorder

    D.

     cardiac arrest


  13. Hypothermia is most common in:

  14. A.

     Hot, humid weather

    B.

     Cold, wet weather

    C.

     Hot, dry weather

    D.

     Cold, dry weather


  15. The earth is tilted at an angle of 23.5o with respect to the plane of its orbit around the sun. If the amount of tilt were increased to 40o, we would expect in middle latitudes:

  16. A.

     Hotter summers and colder winters than at present

    B.

     Cooler summers and milder winters than at present

    C.

     Hotter summers and milder winters than at present

    D.

     Cooler summers and colder winters than at present

    E.

     No appreciable change from present conditions


  17. Which of the following is correctly matched?

  18. A.

     Butterfly - Camouflage

    B.

     Garden lizard -Mimicry

    C.

     House lizard -Autotomy

    D.

     None of these


  19. Flora is the __________ life occurring in a particular region or time

  20. A.

     plant

    B.

     animal

    C.

     human

    D.

     microbial