Energy release associated with rapid movement on active faults is the cause of most earthquakes. A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is the intersection of a fault plane with the ground surface.
The average IQ of a teenager is 100. IQ tests take age into consideration, so the average score is always 100, regardless of a person's age.
A teenager, or teen, is a young person whose age falls within the range from 13â19. They are called teenagers because their age number ends with teen. Someone aged 18 or 19 is also considered a young adult.