question_answer 19)

  Which of the following ecosystems is most productive in terms of net primary production? (a) Deserts                                                                          (b) Tropical rain forests (c) Oceans                                                                           (d) Estuaries

Answer:

                  (b) In terms of net primary productivity tropical rain forest is at the top followed by coral reef, easturies and desert and ocean. Thus option 'b' is correct while 'a', 'c' and 'd' arewrong.