"Heat lightning":
A) is actually a display of the northern lights.
B) is brighter than ordinary lightning.
C) is also called "ball lightning."
D) is regular lightning occurring more than 20 kilometers from the person observing it.

Question

Quizplus · Accepted Answer

Heat lightning is actually regular lightning that occurs far enough away from the observer that it is not heard as thunder. It is often seen on hot summer nights, hence the name "heat lightning."

"Heat Lightning