Solved 2024 Sample Question Paper CBSE Class 10 Science — Question 8
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Study the food chain given below and answer the questions that follow
(a) If the amount of energy available at the third trophic level is 100 joules, then how much energy will be available at the producer level? Justify your answer.
(b) Is it possible to have 2 more trophic levels in this food chain just before the fourth trophic level? Justify your answer.
(a) According to the rule of flow of energy, 10% of energy is available for the next trophic level. Therefore, 10000 J of energy will be available at producer level if the amount of energy available at the third trophic level is 100 joules.
(b) No, it is not possible to have 2 more trophic levels in this food chain just before the fourth trophic level because the loss of energy at each step is so great that very little usable energy will remain after 4 trophic levels.