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Most of the food chains have only 4 steps because:-

1. If there is a long food chain then less energy transfer takes place.
2. This lead to the extinction of top carnivore.
3. this create ecological imbalance.
4. So many food chains consist of 4 steps.
2 4 2
Because of Ten Percent Law. Energy reduces by 10% when it goes to next Trophic level in food chain. For Example: 


Eagle will have the least energy. So that is why food chains have only 3-4 Steps.!!
2 4 2
plz mark as brainliest ans
Mark as brailist answer plz 
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