Answer:
Option (4)
Step-by-step explanation:
The Plasma is formed when a gas is heated and becomes very hot. Due to this heating of gas, the atoms within the gas acquires a huge amount of energy. This energy facilitates the electrons to get eliminated from its nucleus of the gas atoms.
In simple words, plasma is defined as the ionized gas.
These plasma forms more than 99% of the universe that is visible to us. At night, these plasma appears to shine in the form of nebula, stars and auroras that is formed in the atmosphere of both the poles.
Thus, the plasma are formed due to heating or electricity in the atmosphere.
Hence, the correct answer is option (4).