ิBlack ice is an invisible coating of ice that forms on an asphalt road surface.Black ice is very
dangerous.It is caused by drizzle falling on the frozen pavement.Drivers don't know the roadway is icy.When their cars hit the ice,they skid out of control.Sometimes cars bounce off of each other like characters in an video game.Sometimes they skid off the roadway into ditches.Incidences of black ice have caused numerous collisions and deaths in the colder regions of the country