- Sunlight is a kind of light
- Light is a kind of electromagnetic wave
- Hence, sunlight is a kind of electromagnetic wave

- Sunlight is a kind of electromagnetic wave
- Radiation is when electromagnetic waves transfers heat and light energy
- Hence, sunlight transfers heat and light energy through radiation

- Sunlight transfers heat and light energy through radiation
- The sun transmits light to earth through space
- So, the sun transfers heat and light energy to earth through space by radiation

Hence, the sun transfers heat and light energy to earth through space by radiation
Energy from the Sun reaches Earth by
- Sunlight is a kind of light 
- The sun transmits light to earth through space 
- Light is a kind of electromagnetic wave 
- Radiation is when electromagnetic waves transfers heat and light energy