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10th Class Science Our Environment

  • question_answer 20)
      In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level? GrassGrasshopperFrogSnake Hawk (a) 5 kj                                  (b) 50 kj                                (c) 500 kj                              (d) 5000 kj

    Answer:

                      (d) According to 10% law, only 10% of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level. In this food chain, at the 4th trophic level, only 5 RJ energy is available to the snake, So, the energy availableat the producer level will be 5000 kJ. It can be shown as             


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