Question

Which one of the following is one way cycle?

• A. Carbon cycle
• B. H${}_2$O cycle
• C. Free energy cycle
• D. O${}_2$ cycle

Answer 1

The correct option is C Free energy cycle

The transfer of energy in an ecosystem is always one way, from the sun to producers, from producers to herbivores, from herbivores to carnivores. The one way transfer of energy is in accordance with the laws of thermodynamics.

Water, carbon and oxygen cycle in the ecosystem and are regularly exchanged between biotic and abiotic components.