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.
Sedentary teenage boys engage in only light physical activity associated with day-to-day living. The U.S. Department of Agriculture estimates that sedentary boys age 9 to 13 need about 1,600 to 2,000 calories per day and sedentary teenage boys ages 14 to 18 require about 2,000 to 2,400 calories each day.