Question

Under the Ten Percent Law, the remaining 90% of energy is mainly lost during which processes?

Options

• Photosynthesis, nutrient cycling, and solar reflection

• Creation of energy by green plants

• Production of Earth's reservoirs and PAR

• Respiration, movement, and other metabolic activities

Answer 1

About 90% of energy is lost as heat during respiration, movement, and other metabolic activities. Only a small amount remains available for the next trophic level.