Answer:
distance and angle such that points equally distant from a fixed. point lie on a line and lines making a given angle with a fixed line pass. through a point. On account of this property we have called this. distance linear.
An atmospheric discharge of static electricity is called lightning.
The story goes that Benjamin Franklin invented
lightning rods to
protect buildings from lightning.
B. The history of the industry isn’t relevant
I'd have to say gas because it usually doesn't change at all