Question

Which one of the following is not correctly matched?

• A. Carbon Cycle – Photosynthesis, Respiration, Decomposition
• B. Energy Flow – Cyclic movement through the ecosystem
• C. Nitrogen Cycle – Nitrogen Fixation, Nitrification, Denitrification
• D. Producers – Convert sunlight into food using photosynthesis

Answer 1

Answer:

B. Energy Flow – Cyclic movement through the ecosystem

• Energy flow is always unidirectional (Sun → Producers → Consumers → Decomposers), whereas nutrients (carbon, nitrogen, phosphorus) undergo cyclic recycling.