<prompt> Triad of factors determining the severity of malocclusion include:Duration, Intensity and FrequencyActivity, Duration and FrequencyFrequency, Activity and IntensityNone of the above  <response>: The effects of any habit depends upon three factors:Intensity - it is the vigor with which the habit is performed.Duration - it is the amount of time spent on the habit.Frequency - it is the number of times the habit is activated in a day.Above-mentioned triad has direct cause-effect relationship with the habit. 