ANSWER:
A very scary electrostatic discharge is called Lightening.
EXPLANATION:
- Electrostatic discharge is the discharge of the electric current between the bodies with different electric charge and various number of electrons.
- During the thunder bolts lightening there occurs the electrostatic discharge because it equalizes the two electrically charged atmospheres temporarily.
- The lightening is an electric spark produced in the atmosphere which is quite frightening and scary.
- During lightening there is the exchange of billions of joules of energy.