Which energy is produced by the sun's light captured by plants?

• A. Heat/Thermal Energy
• B. Light Energy
• C. Sound Energy
• D. Mechanical Energy

Answer: (B)

Sunlight delivers energy as light. Plants capture photons from the sun and use that energy to power photosynthesis, turning water and carbon dioxide into sugars and storing energy in chemical bonds. Among the given options, the energy directly coming from the sun and used in the process is light energy. Heat can be produced as a byproduct when light warms the surroundings, but the initiating form of energy in this context is light energy. Sound and mechanical energy aren’t the ways plants primarily use or store energy from sunlight. (Remember that the plant ends up storing chemical energy in glucose, but the energy form in the sunlight itself is light energy.)