sunlight is a kind of light & light is a kind of electromagnetic wave ->  sunlight is a kind of electromagnetic wave  sunlight is a kind of electromagnetic wave & radiation is when electromagnetic waves transfers heat and light energy ->  sunlight transfers heat and light energy through radiation  sunlight transfers heat and light energy through radiation & the brick absorbs heat energy from the sunglight ->  sunlight transfers heat and light energy to the brick by radiation  sunlight transfers heat and light energy to the brick by radiation & the sun is a source of radiation / heat called sunlight -> the sun transfers heat and light energy to the brick by radiation