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Solution


Q.

The direction of energy flow in an ecosystem is:
1 uni-directional but in any direction  
2 multi-directional  
3 uni-directional but from lower trophic level towards the higher trophic level  
4 bi-directional  

Ans.

(3)

Energy flows in a unidirectional manner in an ecosystem from the lower trophic level towards the higher trophic level.