Which of the following is not related to solar system?
A
Small planet
B
Comets
C
Planet
D
Nebula
Correct Answer: Nebula
Nebula is the dense cloud of gases mainly Helium & Hydrogen & dust. They occur at primary stages & then from them galaxies are formed. It is a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.