Which best describes the process of radiation? A. Cold air transfers heat energy to warm air. B. Sunlight transfers energy to land, air, or water. C. Warm air transfers heat energy to cold air. D. Reflections from the surface warm the atmosphere.

The answer is B. Sunlight transfers energy to land, air, or water.

Radiation is the transfer of energy in the forms of waves or particles through some space. For example, sunlight is radiation from light. It transfers energy in the form of electromagnetic waves to land, air, or water.