Question

In an ecosystem, energy is dissipated as _______ energy which cannot be recycled.

• A. light
• B. chemical energy
• C. heat
• D. mechanical energy

Answer 1

The correct option is C heat

Sunlight is the ultimate source of energy in all ecosystems on Earth. Solar energy is converted into chemical energy by plants which then passes along the food chain.
Only 10% of the total energy is transferred from one trophic level to another and rest is dissipated as heat and utilised to perform various metabolic activities.