The method of heat transfer by which the Sun energy reaches the Earth is:

Conduction
Convection
Radiation
Solaration

Radiation

your wrong

I apologize for any confusion. The correct answer is indeed radiation. The Sun emits energy in the form of electromagnetic radiation, which includes visible light, ultraviolet (UV) radiation, and infrared (IR) radiation. This radiation travels through empty space and reaches the Earth, providing heat and light energy.

How bright a star appears to us on Earth depends MAINLY on:

the age of the star
your position on Earth
The composition of the star
the stars distance from Earth

The main factor that determines how bright a star appears to us on Earth is the star's distance from Earth. The closer a star is to Earth, the brighter it appears. The composition of the star, age, and your position on Earth can also have some influence, but distance is the primary factor.