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Question 13Which of the following limits the number of trophic levels in a food chain?(a) Decrease in energy at higher trophic levels(b) Sufficient food supply(c) Polluted air(d) Water

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Question 13

Which of the following limits the number of trophic levels in a food chain?



(a) Decrease in energy at higher trophic levels

(b) Sufficient food supply

(c) Polluted air

(d) Water





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