Which of the following is a star?

Earth
Sun
Moon
a Comet?
Sun?

Sun.

sun

Correct! The Sun is a star. To determine this, you can gather some information about the objects listed and look for key characteristics that define a star.

The Earth is not a star, but a planet. It is part of the solar system and revolves around the Sun.

The Moon is not a star either, but a natural satellite that orbits the Earth.

A comet is also not a star. It is a celestial object composed of dust, ice, and rocky particles that orbits around the Sun in an elongated or elliptical shape. Comets often exhibit a glowing tail as they approach the Sun.

On the other hand, the Sun is indeed a star. It is a large ball of hot, glowing gas that emits its own light and heat. It is located at the center of our solar system and provides light, heat, and energy to the planets, including Earth.

In summary, out of the options provided, only the Sun is a star.