Question

15 Assertion - A food chain generally consists of three or four steps.
Reason
The loss of energy at each step is so great that very little usable energy
remains after four trophic levels.​

Answer 1

Answer:

ANSWER

(a) The loss of energy at each step of food chain is so great that very little usable energy remains after four trophic levels. Hence, food chains generally consist of . only three or four steps.

(b) 10%

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Answer 2

Answer:

Answer:

ANSWER

(a) The loss of energy at each step of food chain is so great that very little usable energy remains after four trophic levels. Hence, food chains generally consist of . only three or four steps.

(b) 10%

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