Question

Energy flow through an ecosystem is one way ? ( Aaisha)

Answer 1

Always unidirectional

Answer 2

Answer:

(i) The sun is the most important source of energy in any ecosystem.  

(ii) Green plants of the ecosystem store some of the solar energy in the form of food.

(iii) Before reaching the decomposers, this energy is passed on from one trophic level to the next.

(iv) Decomposers dissipate some amount of energy in the form of heat.

(v) However, no part of the energy ever returns to the sun. Hence, such passage of energy is referred to as ‘one way’ transport.