Punjab Medical Punjab - MET Solved Paper-2011

  • question_answer
    How deep is photic or euphotic zone from the upper surface of sea?

    A)  10 m                                    

    B)  100 m

    C)  200 m                                  

    D)  500 m

    Correct Answer: C

    Solution :

    From surface to about 200 m, there is sharp gradients of illumination, temperature and salinity. Below this zone is the aphotic zone.


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