Which option is a form of energy listed in the material?

• A. Color
• B. Mass
• C. Speed
• D. Electromagnetic energy

Answer: (D)

Energy appears in different forms, and among the options, electromagnetic energy is the known form listed as a type of energy. It includes the energy carried by light and other electromagnetic waves, which is a standard way to categorize energy in many environmental and engineering contexts.

Color isn’t energy itself; it’s how we perceive different wavelengths of light. Mass is a property of matter, not a form of energy (though energy and mass are linked by E=mc^2). Speed describes how fast something moves and relates to kinetic energy, but it isn’t energy on its own.