North Africa, region of Africa comprising the modern countries of Morocco, Algeria, Tunisia, and Libya. North AfricaEncyclopÃ¦dia Britannica, Inc.The geographic entity North Africa has no single accepted definition.
A Stressor is anything (physical or psychological) that produces stress (negative or positive) is considered a stressor.
resistor edit a resistor is a block or material that limits the flow of current the greater the resistance the lower the current will be assuming the same voltage imposed on the resistor the hydraulic analogy of a resistor would be the pipe with water flowing through it